Union Lake and Lake Sarah dominate the glacial landscape of Polk County in this modern survey, which documents a region defined by its water and agriculture. The terrain is dotted with numerous small lakes and basins including Maltrud Lake, Crooked Lake, and Matson Lake, while the Sand Hill River cuts across the southeastern corner. This area serves as a significant recreational and rural hub, evidenced by the Union Lake Sarah Campground and Farmers Union Park Campground situated along the northern lake shores.
29 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.
1919 · Valley
USGS Topo · 1:62,500
1952 · Grand Forks
USGS Topo · 1:250,000
1954 · Bemidji
USGS Topo · 1:250,000
1956 · Grand Forks
USGS Topo · 1:250,000
1957 · Bemidji
USGS Topo · 1:250,000
1958 · Bemidji
USGS Topo · 1:250,000
1966 · Grand Forks
USGS Topo · 1:250,000
1966 · Halverson Lake
USGS Topo · 1:24,000
1966 · Union Lake
USGS Topo · 1:24,000
1966 · Ranum
USGS Topo · 1:24,000