The headwaters of the Rio Grande define this high-altitude landscape in San Juan County, where numerous alpine forks converge in a complex hydrographic network. The terrain is marked by significant peaks, including Half Peak, Carson Peak, and Bent Peak, which stand as sentinels over the deep drainage basins of Pole Creek and Lost Trail Creek. The presence of the Napoleon Mine indicates a history of mineral exploration tucked into these high ridges, while the Bristol Head Number 1 Dam at the southern edge of the sheet reflects the management of the region's vital water resources.
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This is the sole edition of this map. No revisions or reprints were ever made.
1897 · Silverton
USGS Topo · 1:62,500
1900 · Needle Mountains
USGS Topo · 1:62,500
1901 · Silverton
USGS Topo · 1:62,500
1902 · Needle Mountains
USGS Topo · 1:62,500
1902 · Silverton
USGS Topo · 1:62,500
1905 · San Cristobal
USGS Topo · 1:125,000
1907 · San Cristobal
USGS Topo · 1:125,000
1945 · Durango
USGS Topo · 1:250,000
1953 · Durango
USGS Topo · 1:250,000
1954 · Durango
USGS Topo · 1:250,000