Map of the Territory of Montana with portions of the adjoining territories / drawn by W.W. de Lacy for the use of the First Legislature of Montana.De Lacy, W. W. (Walter Washington), 1819-1892[1865?]"Showing the gulch or placer diggings actually worked and districts where quartz (gold & silver) lodges [i.e. lodes] have been discovered to January 1st 1865."Gulch diggings, quartz lodes, county names, and territory boundary in red.Prime meridians: Greenwich and Washington.Relief shown by hachures.Yale's copy includes mark of previous owner: B.F. Shumard.cartographic