Forest atlas of the national forests of the United States San Juan folio - United States. Forest Service. ([Washington, D.C.], U.S. Department of Agriculture, Forest Service, 1909, 1909)
https://www.biodiversitylibrary.org/bibliography/119282
Keywords: Colorado|Forest reserves|Forests and forestry|Maps|National parks and reserves|San Juan National Forest|San Juan National Forest (Colo.)|