Botanical survey of the Ruby Range, Madison County, Montana, Dillon Resource Area, Bureau of Land Management / prepared by Jim Vanderhorst [et. al].; prepared for United States Department of Interior, Bureau of Land Management.

Botanical survey of the Ruby Range, Madison County, Montana, Dillon Resource Area, Bureau of Land Management / prepared by Jim Vanderhorst [et. al].; prepared for United States Department of Interior, Bureau of Land Management. Cooper, Stephen V. Heidel, Bonnie L. Montana Natural Heritage Program. Pierce, John. United States. Bureau of Land Management. Vanderhorst, James P. text book Helena, MT : Montana Natural Heritage Program, [1997] 1997 English Botany Dillon Resource Area Madison County Montana Rare plants 581.7/53 http://www.biodiversitylibrary.org/bibliography/35813 37454465 Mt