DEPARTMENT OF THE INTERIOR 
UNITED STATES GEOLOGICAL SURVEY 
GEORGE OTIS SMITH, DIRECTOR 
Bulletin :*(>4 
GEOLOGY AND MINERAL RESOURCES 
OF THE 
LARAMIE BASIN, WYOMING 
A PRELIMINARY REPORT 
BY 
N. H. DARTON and C. E. SIEBENTIIAL 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1909 
