Reconnaissance geologic map of the northern half of the Helmville Quadrangle, Powell County, Montana
Open-File Report
79-444
By: W. Mark Weber and Irving Jerome Witkind
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Abstract
Suggested Citation
Weber, W., and Witkind, I.J., 1979, Reconnaissance geologic map of the northern half of the Helmville Quadrangle, Powell County, Montana: U.S. Geological Survey Open-File Report 79-444, 1 map ;58 x 40 cm. + legend on sheet 71 x 85 cm. --, https://doi.org/10.3133/ofr79444.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Reconnaissance geologic map of the northern half of the Helmville Quadrangle, Powell County, Montana |
| Series title | Open-File Report |
| Series number | 79-444 |
| DOI | 10.3133/ofr79444 |
| Year Published | 1979 |
| Language | ENGLISH |
| Description | 1 map ;58 x 40 cm. + legend on sheet 71 x 85 cm. -- |