Thumbnail Medium Original

Title: USGS Topographer at Work

Description: A USGS topographer works with a plane table and alidade to create a 1:180,000 scale topographic map near Imlay, Nevada. The umbrella is to protect the instrument from temperature variations.

Location: Imlay, NV, USA

Date Taken: Jan 1 1931

Photographer: , U.S. Geological Survey

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:

Western Region Science Information and Library Services

File Details:
Type: JPEG image - 1.18 MB
Dimensions: 2445 x 1349
Resolution: 72 dpi

Suggest an update to the information/tags?

Tags: alidade cartographic cartography historical map maps plane survey surveying table topographic topography