
Spring Lake and its surrounding prairie depressions dominate this late-1960s landscape in Hyde County. The area is defined by a series of low-lying basins including Spring Lake Valley, Douglas Valley, and Illinois Valley, which likely supported seasonal wetlands or grazing land. While largely rural and sparsely settled, the map shows evidence of local infrastructure like the Valley Sch and scattered Gravel Pits used for road maintenance. This 1968 field check captures the High Plains at a moment when the Missouri River Basin development programs were influencing local land use and resource management. The grid of section lines and township boundaries, including the transition from T. 115 N. to T. 114 N., reveals a highly organized agricultural survey system typical of the Dakotas.
13 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.
1949 · Mitchell Lake
USGS Topo · 1:24,000
1950 · Mitchell Lake
USGS Topo · 1:24,000
1950 · Highmore
USGS Topo · 1:24,000
1951 · Rice Lake
USGS Topo · 1:24,000
1953 · Huron
USGS Topo · 1:250,000
1954 · Huron
USGS Topo · 1:250,000
1968 · Harrold NW
USGS Topo · 1:24,000
1968 · Harrold
USGS Topo · 1:24,000
1968 · Holabird
USGS Topo · 1:24,000
1978 · Thomas Lake
USGS Topo · 1:24,000