The agrarian grid of O'Brien County defines this 2010 survey, centered on the small communities of Primghar and Gaza. As the county seat, Primghar serves as a regional hub, featuring the O'Brien County Fairground and Primghar Airport on its eastern edge. The map captures the highly organized township system of the Iowa plains, where nearly every section is bounded by a gravel or paved road like Sorrel Ave and 400th St.
35 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.
1954 · Fairmont
USGS Topo · 1:250,000
1954 · Fort Dodge
USGS Topo · 1:250,000
1957 · Fort Dodge
USGS Topo · 1:250,000
1958 · Fort Dodge
USGS Topo · 1:250,000
1958 · Fairmont
USGS Topo · 1:250,000
1964 · Primghar
USGS Topo · 1:24,000
1964 · Plessis
USGS Topo · 1:24,000
1964 · Gaza
USGS Topo · 1:24,000
1964 · Sanborn
USGS Topo · 1:24,000
1970 · Hartley SW
USGS Topo · 1:24,000