Maps & Related Data
Original base map data was digitized from 1989 and 1991 photography by Horizon Inc. This data has not been field checked by Butte-Silver Bow GIS. Changes occurring after the date of photography may or may not be reflected in the base map, and any information is intended for reference use only. No liability will be assumed by the Butte-Silver Bow government for decisions based on determinations made exclusively from this map.
Section lines were originally from United States Geological Survey (USGS) 1:24,000 Digital Line Graph (DLG) data and have been upgraded in some of the Urban Area by GPS points obtained from Tera West and Butte-Silver Bow GIS.