Bromfield, Calvin Stanton,  1923- <br/><br/>
Mineral resources of the Wilson Mountains Primitive Area, Colorado / 
by Calvin S. Bromfield and Frank E. Williams ; With a section on Geophysical interpretation, by Peter Popenoe 
 - Washington, D.C. :  United States Government Printing Office,  1972 
 - vii, 79 p. :  ill. ;  24 cm. 
 - Studies related to wilderness--primitive areas Geological Survey bulletin ;  Bull. no. 1353-A .
<br/><br/> Part of illustrative matter in pocket 
<br/><br/>Bibliography: p. 62-64 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--Colorado--San Miguel Co.<br/>Mines and mineral resources--Colorado--Dolores County
<br/><br/><label>Dewey Class. No.: </label>553.0978823