Maps of Helena and East Helena quadrangles, Montana, showing areal distribution of surficial deposits and bedrock and location of geological faults

Robert George Schmidt

doi:10.3133/ofr77129

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Maps of Helena and East Helena quadrangles, Montana, showing areal distribution of surficial deposits and bedrock and location of geological faults

Open-File Report 77-129

By: Robert George Schmidt

https://doi.org/10.3133/ofr77129

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Document: Report (pdf)
Plates:
- Plate 1 (pdf)
- Plate 2 (pdf)
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Abstract

Additional publication details
Publication type	Report
Publication Subtype	USGS Numbered Series
Title	Maps of Helena and East Helena quadrangles, Montana, showing areal distribution of surficial deposits and bedrock and location of geological faults
Series title	Open-File Report
Series number	77-129
DOI	10.3133/ofr77129
Year Published	1977
Language	ENGLISH
Description	2 maps.; 5 p.