
Arapaho National Forest defines the landscape of this high-elevation Grand County terrain, where water management is visible through a network of historic engineering features. The Sylvan Reservoir and its associated Sylvan Ditch represent the critical infrastructure of the region, alongside other diversions like the Brinker Ditch and Wood Number 2 Ditch. These systems historically diverted water from alpine creeks to support ranching and agricultural operations in lower basins.
68 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1915 · Longs Peak
USGS Topo · 1:125,000
1919 · Rocky Mountain National Park
USGS Topo · 1:125,000
1924 · Fraser
USGS Topo · 1:62,500
1926 · Fraser
USGS Topo · 1:62,500
1933 · Ute Peak
USGS Topo · 1:62,500
1937 · Ute Peak
USGS Topo · 1:62,500
1953 · Denver
USGS Topo · 1:250,000
1954 · Greeley
USGS Topo · 1:250,000
1954 · Craig
USGS Topo · 1:250,000
1957 · Denver
USGS Topo · 1:250,000