@misc{indiciae963cbfb3ad2f, title = {Map of Montana : population (estimated 1890) 130,000. 145,310 square miles}, author = {mast, crowell \& kirkpatrick and benedict \& co. (chicago, ill.)}, year = {1890}, url = {https://www.loc.gov/item/2019587056/}, note = {Source identifier: 2019587056} }