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Title: Boundary Monument 75E, Southeastern Arizona - 1994

Description:

During the past century, the grassland has continued to become more shrubby with increases in such plants as broom snakeweed and velvet mesquite. The mesquite, occurring here near the upper limits of its range, has remained short, probably as the result of catastrophic freezes that have visited the area. Bush muhly is found beneath some of the mesquites. (Raymond M  Turner).

Location: AZ

Date Taken: August 21 1994

Photographer: Raymond Turner, USGS (retired) ,

Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.

Source:

USGS Desert Laboratory Repeat Photography Collection.  Contact for additional information:  Diane Boyer, deboyer@usgs.gov or 520-670-6671, ext. 297

File Details:
Type: JPEG image - 1.84 MB
Dimensions: 1800 x 1373
Resolution: 72 dpi

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Tags: Arizona BoundaryMonument Desert Boyer ClimateChange DesertLaboratory NR2010_12_02 NewMexico RepeatPhotography Turner Webb biology