Airborne radioactivity survey of the Aspen Mountain area, Sweetwater County, Wyoming

Aerial image shows the result of an airborne radioactive survey over an area of 700 square miles in Sweetwater County, Wyoming with the approximate location of three radioactivity anomalies found. Text describes methods used and discusses the anomalies.
Date: June 22, 1953
Creator: Meuschke, J. L. & Moxham, Robert Morgan
System: The UNT Digital Library

Ownership maps of parts of Hillsborough and Polk Counties, land-pebble phosphate district, Florida

Maps of parts of Hillsborough and Polk Counties, in the Land-Pebble Phosphate District, Florida.
Date: June 22, 1953
Creator: Cathcart, James Bachelder & Ward, E. M.
System: The UNT Digital Library

Soil map, Texas, Brownsville sheet

Map displays soil types along with canals, lakes, rivers, swamps, towns, roads, and railroads. Includes legend and soil profiles.
Date: August 22, 1908
Creator: United States. Bureau of Soils.
System: The Portal to Texas History