GENERAL, SPECIAL, AND ECONOMIC MAPS. 
Arizona: 
Bisbee Special. Scale, 1 : 12000; contour interval. 20 feet. Shows location of copper mines in the 
Bisbee district. 
Globe Special. Scale, 1 : 12000; contour interval, 20 feet. Shows location of mines and smelters 
in the Globe district. 
California: 
Southern California, Scale, 1 : 250000: contour interval, 250 feet. Covers the southern part of the 
State, on reduced scale. Latitude, 33° 30'-34° 30'; longitude, 116° 80'-118° 30'. 
Colorado-Wyoming: 
Encampment Special. Scale, 1 :90000; contour interval. KM) feet. Latitude. 41°-41°15': longitude, 
106°45'-107°15'. 
Idaho-Montana: 
Cceur d'Alene Special. Scale. ] :62500; contour interval, 50 feet. Coeur d'Alene region, chiefly in 
northern Idaho. 
Indian Territory: 
Map of the Territory. Scale, 1 :500000; contour interval. LOO feet. 
Missoiki-Kansas: 
Joplin district. Scale, 1:62500; contour interval, L0 feet. Covers the region around Joplin for a 
north-south distance of about 15 miles and an east-wesl distance of aboul 25 miles. 
Montana: 
Marysville Special. Scale, l :31250; contour interval, 50 feet. Covers the region around Marys- 
ville for a north-south distance of aboul 8 miles and an easl -u esl distance of about 5 miles. 
New York: 
Niagara River and vicinity. Scale, 1 :62500; contour interval, 20 feet. Covers portions of Niagara 
Falls, Tonawanda, Wilson, and Buffalo quadrangles. 
Texas: 
Terlingua Special. Scale, 1 :50000; contour interval, 25 feet, (overs the region extending 12 
miles eastward and 3 miles westward from Terlingua and about ;> miles in a north-south 
direction. 
Utah: 
Bingham mining map. Scale, 1:20000; contour interval, 50 feet. Covers part of T sle Valley 
quadrangle, in the vicinity of Bingham Canyon. 
Park City Special. Scale, 1 : 25000; contour interval, 50 feet. Covers the region extending about 
4 miles southward and 3 miles eastward and westward from Park City. 
Wisconsin: 
Marathon Special. Scale, 1 : 125000; contour interval, 20 feet. Latitude, 44° 45'-45° 15'; longitude, 
89° 45'-90° 15'. 
Wausau Special. Scale, 1:125000; contour interval. 20 feet. Latitude, 44° 45'-45° 15'; longitude, 
89° 15'-89° 45'. 
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