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Country
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Plate 1. Natural Gamma Aeroradioactivity and Generalized Geologic Maps of Puerto Rico
Map with graded color shading to show levels of naturally-occurring gamma aeroradioactivity within Puerto Rico. Details about the survey and map creation are printed at right. Scale 1:250,000.
Date:
March 1964
Creator:
MacKallor, Jules A.
System:
The UNT Digital Library
Plate 1. Natural Gamma Aeroradioactivity of the National Reactor Testing Station Area, Idaho
Map with graded color shading to show levels of naturally-occurring gamma aeroradioactivity within the Idaho National Reactor Texting Station Area. Details about the survey and map creation are printed at right. Scale 1:250,000.
Date:
March 1963
Creator:
Geological Survey (U.S.)
System:
The UNT Digital Library