Agricultural and mining history intersect on this landscape north of Denver, where the Tri-Towns of Firestone, Frederick, and Dacono are situated. The map shows a transition from historical industrial roots to modern residential expansion, specifically at the State Coal Mine Junction and the small enclave of Puritan. A complex network of irrigation infrastructure supports the region, including the Coal Ridge Ditch, Stanley Ditch, and Bull Canal, which divert water to essential storage facilities like Frederick Reservoir and the German Reservoir Number 8 and 9. To the south, the northern reaches of Broomfield begin to emerge near the Section 35 Reservoir. Aviation interests are represented by the Wings N Things Airpark & Museum Airport, while small historical settlements such as Evanston, National, and Saint Vrains anchor the local geography.
68 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
This is the sole edition of this map. No revisions or reprints were ever made.
1890 · East Denver
USGS Topo · 1:125,000
1899 · West Denver
USGS Topo · 1:125,000
1902 · Greeley
USGS Topo · 1:125,000
1904 · Niwot
USGS Topo · 1:62,500
1940 · Brighton
USGS Topo · 1:31,680
1940 · Eastlake
USGS Topo · 1:31,680
1940 · Lafayette
USGS Topo · 1:31,680
1944 · Lafayette
USGS Topo · 1:31,680
1944 · Brighton
USGS Topo · 1:31,680
1944 · Eastlake
USGS Topo · 1:31,680