1. Preliminary geologic map and sections of the Hogan 4 northeast quadrangle, Lewis and Clark and Cascade Counties, Montana [cartographic material] Yale Public content 1964. 2012-09-24T19:24:19Z. 2013-03-18T22:19:43Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Montana, Lewis and Clark County, and Cascade County.