Author: Roberts, Albert Eugene, 1921- - Yale University Library GeoBlacklight Search Results

1. Geologic map of the Bozeman Pass quadrangle, Montana [cartographic material]

1964. 2012-09-24T15:42:57Z. 2013-03-18T22:19:39Z. Roberts, Albert Eugene, 1921-. The Survey. English. Public. Montana, Gallatin County, and Park County.

2. Geologic map of the Fort Ellis quadrangle, Montana [cartographic material]

1964. 2012-09-24T15:35:07Z. 2013-03-18T22:19:39Z. Roberts, Albert Eugene, 1921-. The Survey. English. Public. Montana and Gallatin County.

3. Geologic map of the Mystic Lake quadrangle, Montana [cartographic material]

1964. 2012-09-24T15:39:07Z. 2021-05-04T23:19:16Z. Roberts, Albert Eugene, 1921-. The Survey. English. Public. Montana, Gallatin County, and Park County.