This early, large-scale, territorial map is by the Surveyor General's Office, Santa Fe, New Mexico, and is signed in plate by Surveyor General A.P. Wilbar. The map depicts the territory prior to Colorado annexing the San Luis Valley region. It extends to the Colorado River and north to Salt Lake City. It locates numerous Indian villages and reservations, extent of surveys completed including Pueblo claims, and subdivided townships. Limited and mostly inaccurate detail is shown in present day Arizona. It traces the Santa Fe Trail (wagon road to Ft. Leavenworth) and the wagon road to San Antonio. Good detail of springs, watershed, mineral locations, and mountains in hachure. An early version of an increasingly difficult map to obtain.

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Condition: B

Issued folding with moderate toning along folds and the edges of the sheet, a few spots of foxing, and very minor offsetting. There are short fold separations at the fold intersections that have been closed on verso with archival tape. Trimmed at left with partial loss of the neatline.