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Geology and ore deposits of the quadrangle, Montana

Professional Paper 78

By:
and

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Abstract

Philipsburg lies about midway between the eastern and western ·limits of the Rocky Mountain system, if the term be used in the broad sense prevailing in the United States. In the general latitude of Montana the system as defined by American usage is bounded on the west by the Columbia River basalt. plain and on the east by the Great Plains. The western limit is fairly definite, but on the east there is no very definite line between the plains and mountains; the mountains are fairly continuous west and north of the Philipsburg quadrangle, but to the east and southeast mountains alternate with broad stretches of semiarid lowland. The quadrangle therefore overlaps the line between two physiographic provinces, one characterized by isolated mountain groups, of which the Flint Creek Range is the most westerly, and the other by more continuous elevations, of which the Sapphire Mountains are an example.

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Geology and ore deposits of the quadrangle, Montana
Series title:
Professional Paper
Series number:
78
Edition:
-
Year Published:
1913
Language:
English
Publisher:
Washington Government Printing Office
Description:
Report 271 p.; 2 Sheets: 24 x 20 inches or smaller
Larger Work Type:
Report
Larger Work Subtype:
USGS Unnumbered Series
First page:
1
Last page:
271
Country:
United States
State:
Montana
Other Geospatial:
Philipsburg quadrangle
Online Only (Y/N):
N
Additional Online Files(Y/N):
Y