
Thief River Falls serves as the regional hub for the Red River Valley’s eastern edge, where the Thief River meets the larger drainage network. This 1992 revision reveals a landscape heavily shaped by civil engineering, dominated by an extensive grid of drainage channels including Judicial Ditch No 9 and County Ditch No 12, which converted the natural wetlands into productive farmland. The area is anchored by the vast Agassiz National Wildlife Refuge and Old Mill State Park, preserving essential prairie and marsh habitats amidst the agricultural expansion.
133 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.
1918 · Rollis
USGS Topo · 1:62,500
1918 · Angus
USGS Topo · 1:62,500
1918 · Terrebonne
USGS Topo · 1:62,500
1918 · Acton
USGS Topo · 1:62,500
1918 · Garland
USGS Topo · 1:62,500
1918 · Red Lake Falls
USGS Topo · 1:62,500
1918 · Argyle
USGS Topo · 1:62,500
1918 · Viking
USGS Topo · 1:62,500
1918 · Greenbush
USGS Topo · 1:62,500
1918 · Warren
USGS Topo · 1:62,500