GOL 135: Geology of the Billy Goat Trail, including Great Falls, Maryland
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Geology | Bentley | Billy Goat Trail GOL 135: Geology of the Billy Goat Trail, including Great Falls, Maryland |
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Geologic map of the Billy Goat Trail, Great Falls, and surrounding
area
By Scott Southworth, Carrie Fingeret, and Thomas Weik (USGS); Open File Report
00-264
The original map is available straight from the source as a large (25"
x 40") PDF file: Geologic
map of the Great Falls area.
Below, I've shrunk the key elements down to a more web-friendly size:
