The following pages consist of: GPS points locations of geologic units collected by the 1998 University of Montana System field geology class displayed on a refined geologic map produced during the field course. Data is overlayed with a more generalized existing geologic map and features extracted from USGS Digital Line Graph coverages.

Geology as shown on a portion of the Montana Bureau of Mines and Geology's Butte 2-degree sheet (Reed Lewis, compiler). The 2-degree Butte sheet is available from the Montana Bureau of Mines and Geology; phone (406) 496-4174.

To view new and refined mapping within this portion of the sheet
Refined geology is based on geology field course mapping in 1998.