Unified Interior Regions

Region 1: North Atlantic-Appalachian

Our Science Centers

Our Science Centers

The NAA Region has 15 Science Centers spanning 14 NE States and Washington, DC. The Centers conduct interdisciplinary biologic, geologic, hydrologic, and energy monitoring and research addressing natural resource issues facing our nation.

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July Photo Contest

July Photo Contest

Check out the winning photographs in the July 2021 Photo Contest! Categories include People, USGS at Work, Where We Work, and Honorable Mention

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Regions L2 Landing Page Tabs

Filter Total Items: 1,126
Date published: June 12, 2020
Status: Active

MD-DE-DC WSC Water Quality Capabilities

Water quality is a measure of the suitability of water for a particular use based on selected physical, chemical, and biological characteristics. Water-quality monitoring is used to help water-resource managers understand and avert potential negative effects of man-made and natural stresses on water resources, evaluate trends, and compare to water-quality criteria.

One of our primary...

Date published: June 8, 2020
Status: Active

Tectonic Processes

Geophysical research utilizes analytical and numerical tools to quantify tectonic processes. Basic geophysical research lays the ground for understanding of Earth processes, which affect natural hazards and resource estimation.
 

Contacts: Uri ten Brink
Date published: May 19, 2020
Status: Active

DETAILED AQUIFER MAPPING OF THE SPRINGVILLE, N.Y. AREA Erie, Cattaraugus, and Wyoming Counties, New York

Introduction Public-water systems at Springville and Yorkshire/Delavan, N.Y. along Cattaraugus Creek draw from local groundwater resources and serve about 5,500 people (U.S. EPA SDWIS database). The remainder of the population obtains water from domestic wells, many of them completed in glacial aquifers. A Cattaraugus Creek tributary valley (Buttermilk Creek) to the south is the site of the...

Contacts: Shannon Fisher
Date published: May 19, 2020
Status: Active

DETAILED AQUIFER MAPPING OF THE MALONE, N.Y. AREA (Adirondack foothills and St. Lawrence lowlands transect) Franklin County, New York

Introduction The Village of Malone, Franklin County, New York is located along the Salmon River where it exits the northern foothills of the Adirondack Mountains and flows northward across the St. Lawrence Lowlands until its confluence with the St. Lawrence River. The public water supply of the Village of Malone serves a population of 13,200 (U.S. EPA SDWIS database), which includes three...

Contacts: Shannon Fisher
Date published: May 15, 2020
Status: Active

MD-DE-DC WSC Surface Water Capabilities

As an integrated part of the WSC, the Surface Water Team monitors and conducts investigative research to describe and improve our region's understanding of extreme hydrologic events - droughts, floods and flood hazards, and coastal or bay storm surge and inundation. They also facilitate measurement of precipitation, streamflow, stage and computation of streamflow at locations in Maryland,...

Date published: May 7, 2020
Status: Active

Enabling AI for citizen science in fish biology

Artificial Intelligence (AI) is revolutionizing ecology and conservation by enabling species recognition from photos and videos. Our project evaluates the capacity to expand AI for individual fish recognition for population assessment. The success of this effort would facilitate fisheries analysis at an unprecedented scale by engaging anglers and citizen scientists in imagery collection. This...

Date published: May 7, 2020
Status: Completed

New information on chemical and physical characteristics of streams and floodplains across the Chesapeake Bay and Delaware River watersheds

Issue: Improving stream health is an important outcome of the Chesapeake Bay Program partnership. Stream conditions are important for recreational fisheries, and mitigating the amount of nutrients, sediment, and contaminants delivered to the Bay.

Contacts: Gregory Noe
Date published: May 7, 2020
Status: Active

Pennsylvania Groundwater Quality Monitoring Network

USGS Pennsylvania Water Science Center, in cooperation with the Pennsylvania Department of Environmental Protection, samples 28 wells biannually to monitor ambient groundwater quality conditions throughout Pennsylvania.

Date published: May 4, 2020
Status: Active

Hazard and Risk of Anticoagulant Rodenticides to Predatory and Scavenging Wildlife

Invasive mammalian predators are the most damaging group of animals affecting global biodiversity.  When introduced on remote islands, alien rodent species can devastate local biota and have been linked to approximately 30% of all extinctions. In addition, rodents can also consume and spoil crops, and serve as disease vectors that affect humans.  Starting in the 20th century,...

Date published: May 4, 2020
Status: Active

An Analysis of Trends in the Magnitude of Floods in Urbanized Watersheds on Long Island, New York

Summary: This study aims to do a thorough analysis of trends in peak streamflows on Long Island. Reliable information about the magnitude and frequency of floods is essential for flood insurance studies, flood-plain management, and the design of transportation and water-conveyance infrastructure, such as roads, bridges, culverts, dams, and levees. Federal, State, regional, and local officials...

Date published: April 30, 2020
Status: Active

Bird Habitat Needs in the Mississippi Alluvial Valley

Historically the Mississippi Alluvial Valley (MAV) was predominantly bottomland hardwood forest and most birds of conservation concern depend on bottomland hardwood forest. Past conservation planning has focused on habitat objectives with presumption that bird population goals would be met by habitat provision.

Date published: April 30, 2020
Status: Completed

New dataset available on stream and floodplain geometry to inform restoration decisions

Issue: The need for stream mapping

The physical shape of streams and floodplains can provide information about how water, sediment, and other matter moves through the landscape. Streams can have deep channels (tall streambanks) disconnected from the floodplain or wide shallow channels that easily spill over the banks into the floodplain during high flows. Mapping where...

Filter Total Items: 492
Date published: July 8, 2020

Streamflow Magnitude, Water Temperature, and Water Chemistry in Robinson Forest, Breathitt County, Kentucky (1971-2018)

Robinson Forest, in eastern Kentucky, is a research forest owned and operated by the University of Kentucky (UK) since the 1920s. The UK Department of Forestry and Natural Resources began collecting streamflow and water-chemistry data in the forest starting with weirs at Falling Rock and Little Millseat in 1971, and supplemented by weirs at Coles Fork and Clemons Fork in 1973. This digi

Date published: July 8, 2020

Phytoplankton Community Composition in Western Lake Erie Basin and Northeast Ohio, 2016-2018

This dataset contains a tabular file of phytoplankton abundance and community composition analysis in samples collected from two sites in the Western Lake Erie Basin and one inland lake site in northeast Ohio. Samples were processed by the Ohio Water Microbiology Lab of the U.S. Geological Survey (USGS) and analyzed by BSA Environmental Inc. and during federal fiscal years 2016-2018. The data...

Date published: July 8, 2020

Precipitation and Precipitation Chemistry in Robinson Forest, Breathitt County, Kentucky (1971-2018)

Robinson Forest, in eastern Kentucky, is a research forest owned and operated by the University of Kentucky (UK) since the 1920s. The UK Department of Forestry and Natural Resources began collecting precipitation and precipitation chemistry data in the forest starting with one weather station at the Robinson Forest Camp in 1971, and followed by several additional stations in the mid-199

Date published: July 8, 2020

Air temperature in Robinson Forest, Breathitt County, Kentucky (1971-2018)

Robinson Forest, in eastern Kentucky, is a research forest owned and operated by the University of Kentucky (UK) since the 1920s. The UK Department of Forestry and Natural Resources began collecting air temperature data at the Robinson Forest Camp in 1971. This digital dataset includes information about the weather station where these data were collected, and how these data were process

Date published: July 8, 2020

Chesapeake Bay River Input Monitoring Network 1985-2019: Annual loads

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2019. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression appro

Date published: July 8, 2020

Chesapeake Bay River Input Monitoring Network 1985-2019: WRTDS input data

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2019. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression appro

Date published: July 8, 2020

Chesapeake Bay River Input Monitoring Network 1985-2019: Average annual yields

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2019. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression appro

Date published: July 8, 2020

Chesapeake Bay River Input Monitoring Network 1985-2019: Short- and long-term trends

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2019. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression appro

Date published: July 8, 2020

Chesapeake Bay River Input Monitoring Network 1985-2019: WRTDS output data

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2019. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression appro

Date published: July 8, 2020

Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay River Input Monitoring stations: Water years 1985-2019

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring (RIM) stations for the period 1985 through 2019. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach call

Date published: July 7, 2020

Hydrologic simulations for Robinson Forest and Reclaimed Mineland Soils

Robinson Forest, in eastern Kentucky, is a research forest owned and operated by the University of Kentucky (UK) since the 1920s. The Forest is situated in a portion of eastern Kentucky that has undergone extensive resource extraction, including silvaculture and both underground and surface mining of coal. This site has been used to evaluate hydrologic process, stream permanence, a

Date published: July 1, 2020

Sea-floor sediment samples, seabed imagery, and CTD instrument data collected on Stellwagen Bank in May and June, 2015, U.S. Geological Survey Field Activity 2015-017-FA

This field activity is part of the effort to map geologic substrates of the Stellwagen Bank National Marine Sanctuary. The R/V Auk  visited 61 locations on Stellwagen Bank at which a customized Van Veen grab sampler equipped with a video camera and a CTD was deployed to collect sediment for grain-size analysis, seabed video imagery, and measurements of water column properties. 

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Year Published: 2021

Impact of SST and surface waves on Hurricane Florence (2018): A coupled modeling investigation

Hurricane Florence (2018) devastated the coastal communities of the Carolinas through heavy rainfall that resulted in massive flooding. Florence was characterized by an abrupt reduction in intensity (Saffir-Simpson Category 4 to Category 1) just prior to landfall and synoptic-scale interactions that stalled the storm over the Carolinas for several...

Zambon, Joseph; He, Ruoying; Warner, John C.; Hegermiller, Christie

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Year Published: 2021

Atlantic sturgeon status and movement ecology in an extremely small spawning habitat: The Nanticoke River-Marshyhope Creek, Chesapeake Bay

Biotelemetry of Atlantic sturgeon Acipenser oxyrinchus oxyrinchus has exposed spawning behaviors in ever-smaller estuaries, surprising for the NW Atlantic’s largest anadromous species. Small estuary — the Nanticoke River and Marshyhope Creek (Chesapeake Bay) — spawning-run adults and their habitat affinities are described based upon...

Secor, D.H.; O'Brien, M.H.P.; Coleman, N.; Horne, A.; Park, I.; Kazyak, David; Bruce, D. G.; Stence, C

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Year Published: 2021

Summary of oceanographic and water-quality measurements offshore of Matanzas Inlet, Florida, 2018

U.S. Geological Survey (USGS) scientists and technical staff deployed instrumented underwater platforms and buoys to collect oceanographic and atmospheric data at two sites near Matanzas Inlet, Florida, on January 24, 2018, and recovered them on April 13, 2018. Matanzas Inlet is a natural, unmaintained inlet on the Florida Atlantic coast that is...

Martini, Marinna A.; Montgomery, Ellyn; Suttles, Steven E.; Warner, John C.
Martini, M.A., Montgomery, E.T., Suttles, S.E., and Warner, J.C., 2021, Summary of oceanographic and water-quality measurements offshore of Matanzas Inlet, Florida, 2018: U.S. Geological Survey Open-File Report 2021–1014, 21 p., https://doi.org/10.3133/ofr20211014.

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Year Published: 2021

A socio-ecological imperative for broadening participation in coastal and estuarine research and management

For most of the scientific disciplines associated with coastal and estuarine research, workforce representation does not match the demographics of communities we serve, especially for Black, Hispanic or Latino, and Indigenous peoples. This essay provides an overview of this inequity and identifies how a scientific society can catalyze...

Harris, Lora A.; Grayson, Treda; Neckles, Hilary A.; Emrich, Christopher T; Lewis, Kristy A; Grimes, Kristin W.; Williamson, Shanna; Garza, Corey; Whitcraft, Christine R; Beseres Pollack, Jennifer; Talley, Drew M; Fertig, Benjamin; Palinkas, Cindy M; Park, Susan; Vaudrey, Jamie MP; Fitzgerald, Allison M; Quispe, Johnny

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Year Published: 2021

Molluscan aminostratigraphy of the US Mid-Atlantic Quaternary coastal system: Implications for onshore-offshore correlation, paleochannel and barrier island evolution, and local late Quaternary sea-level history

The Quaternary record of the US Mid-Atlantic coastal system includes onshore emergent late Pleistocene shoreline deposits, offshore inner shelf and barrier island units, and paleovalleys formed during multiple glacial stage sea-level lowstands. The geochronology of this coastal system is based on uranium series, radiocarbon, amino acid...

Wehmiller, John; Brothers, Laura L.; Ramsey, Kelvin; Foster, David S.; Mattheus, C.R.; Hein, Christopher; Shawler, Justin L.

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Year Published: 2021

Quantifying slopes as a driver of forest to marsh conversion using geospatial techniques: Application to Chesapeake Bay coastal-plain, USA

Coastal salt marshes, which provide valuable ecosystem services such as flood mitigation and carbon sequestration, are threatened by rising sea level. In response, these ecosystems migrate landward, converting available upland into salt marsh. In the coastal-plain surrounding Chesapeake Bay, United States, conversion of coastal forest to salt...

Molino, Grace Damore; Defne, Zafer; Aretxabaleta, Alfredo; Ganju, Neil Kamal; Carr, Joel A.

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Year Published: 2021

Surface water with more natural temperatures promotes physiological and endocrine changes in landlocked Atlantic salmon smolts

Hatchery salmonid smolts are often reared using groundwater with elevated temperatures to maximize growth. Previous work has shown that rearing hatchery smolts in surface water with a more natural thermal regime resulted in increased return rates of adult landlocked Atlantic salmon (Salmo salar). We evaluated whether landlocked Atlantic salmon...

Ardren, William R.; Greenberg, Larry; Regish, Amy M.; Ardren, William R.; Staats, Nicholas R; Bouchard, Henry; Withers, Jonah L.; Castro-Santos, Theodore R.; McCormick, Stephen D.

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Year Published: 2021

Biogeography and ecology of Ostracoda in the U.S. northern Bering, Chukchi, and Beaufort Seas

Ostracoda (bivalved Crustacea) comprise a significant part of the benthic meiofauna in the Pacific-Arctic region, including more than 50 species, many with identifiable ecological tolerances. These species hold potential as useful indicators of past and future ecosystem changes. In this study, we examined benthic ostracodes from nearly 300 surface...

Gemery, Laura; Cronin, Thomas M.; Cooper, Lee W.; Dowsett, Harry J.; Grebmeier, Jacqueline M.

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Year Published: 2021

Exploring the factors controlling the error characteristics of the Surface Water and Ocean Topography mission discharge estimates

The Surface Water and Ocean Topography (SWOT) satellite mission will measure river width, water surface elevation, and slope for rivers wider than 50-100 m. SWOT observations will enable estimation of river discharge by using simple flow laws such as the Manning-Strickler equation, complementing in-situ streamgages. Several discharge...

Frasson, Renato; Durand, Michael T.; Lanier, Kevin; Gleason, Colin; Andreadis, Konstantinos; Hageman, Mark; Dudley, Robert; Bjerklie, David M.; Oubanas, Hind; Garambois, Pierre-André; Malaterre, Pierre-Olivier; Lin, Peirong; Pavelsky, Tamlin M.; Monnier, Jerome; Binkerhoff, Craig; David, Cedric H.

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Year Published: 2021

Methodology and technical input for the 2021 review and revision of the U.S. Critical Minerals List

Pursuant to Section 7002 (“Mineral Security”) of Title VII (“Critical Minerals”) of the Energy Act of 2020 (Public Law 116–260, December 27, 2020, 116th Cong.), the Secretary of the Interior, acting through the Director of the U.S. Geological Survey, is tasked with reviewing and revising the methodology used to evaluate mineral criticality and the...

Nassar, Nedal T.; Fortier, Steven M.
Nassar, N.T., and Fortier, S.M., 2021, Methodology and technical input for the 2021 review and revision of the U.S. Critical Minerals List: U.S. Geological Survey Open-File Report 2021–1045, 31 p., https://doi.org/10.3133/ofr20211045.

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Year Published: 2021

Daily patterns of river herring (Alosa spp.) spawning migrations: Environmental drivers and variation among coastal streams in Massachusetts

The timing of life history events in many plants and animals depends on the seasonal fluctuations of specific environmental conditions. Climate change is altering environmental regimes and disrupting natural cycles and patterns across communities. Anadromous fishes that migrate between marine and freshwater habitats to spawn are particularly...

Legett, Henry; Jordaan, Adrian; Roy, Allison; Sheppard, John; Somos-Valenzuela, Marcelo; Staudinger, Michelle

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Year Published: 2021

Associations between private well water and community water supply arsenic concentrations in the conterminous United States

Geogenic arsenic contamination typically occurs in groundwater as opposed to surface water supplies. Groundwater is a major source for many community water systems (CWSs) in the United States (US). Although the US Environmental Protection Agency sets the maximum contaminant level (MCL enforceable since 2006: 10 μg/L) for arsenic in CWSs, private...

Spaur, Maya; Lombard, Melissa; Ayotte, Joseph D.; Harvey, David; Bostick, Benjamin; Chillrud, Steven; Navas-Acien, Ana; Nigra, Anne E

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OFR 2008-1362 front cover
December 6, 2009

Overview

Five computer programs were developed for obtaining and analyzing streamflow from the National Water Information System (NWISWeb). The programs were developed as part of a study by the U.S. Geological Survey, in cooperation with the Federal Highway Administration, to develop a stochastic empirical loading and dilution model.

Opening screen of the water-analysis screening tool WAST.
April 2, 2009

Water-Analysis Screening Tool (WAST): A Tool for Assessing Available Water Resources in Relation to Aquatic-Resource Uses

USGS
October 1, 2006

Overview

The Kendall-Theil Robust Line software (KTRLine—version 1.0) is a Visual Basic program that may be used with the Microsoft Windows operating system to calculate parameters for robust, nonparametric estimates of linear-regression coefficients between two continuous variables.

VBVenn publication cover
May 13, 2006

Overview

VBVenn is a Visual Basic program that calculates the size and position of two circles to construct a quantitative Venn diagram. It is a simple one-form program with a fairly intuitive user interface.

USGS
March 30, 2005

Computes estimates of survival and capture probability for 1-age class open population capture-recapture models.

USGS
August 19, 2004

Computes estimates of survival and capture probability adjusted for missclassification.

USGS
April 26, 2002

A removal model for estimating detection probabilities from point count surveys.

USGS
February 21, 2001

Computes estimates of survival and recovery rates for band-recovery data with additional models for estimating reporting rate.

USGS
May 3, 2000

A Double-observer approach for estimating detection probability and abundance from avian point counts.

USGS
June 18, 1998

Computes survival-movement, capture and recovery probabilities from multi-strata capture-recapture-recovery data.

USGS
October 1, 1997

Computes estimates of survival and capture probability for 2-age class open population capture-recapture models.

USGS
September 2, 1997

Computes estimates of survival and capture probability and the proportion of transients in open population capture-recapture data.

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river running through trees
April 2, 2021

Latimer Brook High Flow

The Region 1, April 2021 "Where We Work" Winner (by Henry Witt)

Photograph of Beckman Coulter Multisizer 3
April 1, 2021

Woods Hole Sediment Analysis Lab's Beckman Coulter Multisizer 3

Woods Hole Coastal and Marine Science Center Sediment Analysis Laboratory's Beckman Coulter Multisizer 3 (USGS laboratory equipment number WH-SED-BeckmanCoulter-Multisizer1).

Photograph of Rigaku Miniflex 600
April 1, 2021

Woods Hole Sediment Analysis Lab's Rigaku Miniflex 600

Woods Hole Coastal and Marine Science Center Sediment Analysis Laboratory's Rigaku Miniflex 600 (USGS laboratory equipment number WH-SED-Rigaku-Miniflex1).

Flatrock River at St. Paul, IN
March 31, 2021

Flatrock River at St. Paul, IN

Photo Contest Winner | March 2021 | Honorable Mention
03363500 Flatrock River at St. Paul, IN; established 1930

USGS employees on boat
March 31, 2021

USGS employees on boat

Photo Contest Winner | March 2021 | People
USGS employees on boat

GEMSC supply distribution day
March 31, 2021

GEMSC supply distribution day

Photo Contest Winner | March 2021 | USGS at Work
GEMSC supply distribution day

Aerial photo of Cold River in Maine
March 15, 2021

Aerial photo of Cold River in Maine

Photo Contest Winner | March 2021 | Where We Work
Aerial photo of Cold River in Maine

Person looking a streamgage surrounded by snow
March 5, 2021

Winter Groundwater Comparisons at Middle Dam, ME

The Region 1, April 2021 "People" Winner (by Jeremiah Pomerleau)

Precipitation measurement and sampling at a meteorological platform
March 3, 2021

Precipitation measurement and sampling at a meteorological platform

The photo shows a Belfort Weighing Bucket, Tipping Bucket,  Aerochem, Ott Pluvio , Hubbard Brook, and standard rain gage. Sleepers River Research Watershed, Danville, Vermont. 

The Belfort Weighing Bucket, Ott Pluvio and Tipping Bucket (discontinued) precipitation gauges collect 5 minute data. The standard gage is measured once a week manually. Hubbard Brook sampler

...
Recently retrieved frost tube
March 1, 2021

Frost tube

Photo of a recently retrieved frost tube during the Snow Depth and Snow Water Equivalent (SWE) measurement. Sleepers River Research Watershed, Danville, Vermont.

Soil frost measurements have been made at Sleepers River Research Watershed starting in 1983. Measurements were made by U.S. Army Cold Regions Research and Engineering Laboratory from 1983 to 1993, followed

...
Scouting Marconi Beach
February 28, 2021

Scouting Marconi Beach

Photo Contest Winner | February 2021 | People
Scouting Marconi Beach

North Fork Patapsco River
February 28, 2021

North Fork Patapsco River

Photo Contest Winner | February 2021 | Where We Work
North Fork Patapsco River

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Map of real-time streamflow conditions at USGS gaging sites in New England from the National Water Dashboard, December 10, 2020
December 11, 2020

The Hydrologic Monitoring Program (HMP) conducts hydrologic surveillance and investigation in all six New England States. 

Map of Earth MRI projects in West Virginia
September 29, 2020

A total of $125,000 will fund new research and preserve important data across the Mountain State

Earth MRI Funds Critical Minerals Projects in Maine
September 29, 2020

A total of $118,479 will fund new research and preserve important data across the Pine Tree State

Earth MRI Funds Critical Minerals Projects in Pennsylvania
September 29, 2020

A total of $100,000 will fund new research and preserve important data across the Keystone State

New England Water Use, 2015
September 28, 2020

The New England Water Science Center has collected, reviewed, and aggregated water-withdrawal data in each of the six New England States every 5 years since 1950. The most recent water-use compilation was completed in 2015, and its summary is presented in this geonarrative.

Map of New England 7-day average streamflow conditions
September 21, 2020

Current information to help with understanding the extent and severity of the recent drought in New England.

Image shows USGS field crew conducting measurements on flooding streams
August 4, 2020

To learn more about USGS’s role in providing science to decision makers before, during, and after Hurricane Isaias, visit the USGS Hurricane Isaias page at https://www.usgs.gov/isaias

TNMCorps Mapping Challenge: City/Town Halls in ME, NH, VT
July 9, 2020

Over 80 points have been added since last week!  Keep up the good work!

A male Blue-winged Teal in flight
July 7, 2020

Birds bring joy merely by their presence, from their bold colors and majestic songs to their grace as they glide through the sky. Birds contribute more than beauty to the environment and society. Many plants depend on hummingbirds and other species to pollinate them. Hawks and owls prey on rodents and other pests. Fruit- and grain-eating birds help spread plants’ seeds.

TNMCorps Mapping Challenge: City/Town Halls in ME, NH, VT
July 2, 2020

This challenge is seeing some progress with the northwestern corner of VT filling in!

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