Soil survey of Helena Valley
Subtitle: part of Lewis and Clark County, Montana
By: prepared by United States Department of Agriculture, Soil Conservation Service, in cooperation with Montana Agricultural Experiment Station
Contributors: Montana Agricultural Experiment Station
Publisher: U.S. Dept. of Agriculture, Soil Conservation Service
Published: 1980
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 57
Subjects: Soils -- Montana -- Lewis and Clark County -- Maps
Genres: Maps
Notes: Authors: LaMonte C. Bingham and others