This historical map portrays the area of O'Brien Lookout Tower in 2016, primarily covering O'Brien Lookout Tower. Featuring a scale of 1:24,000, this map provides a highly detailed snapshot of the terrain, roads, buildings, counties, and historical landmarks in the O'Brien Lookout Tower region at the time. Published in 2016, it is the sole known edition of this map.
This is the sole edition of this map. No revisions or reprints were ever made.
1919 · Quiring
USGS Topo · 1:62,500
1920 · Buena Vista
USGS Topo · 1:62,500
1954 · Bemidji
USGS Topo · 1:250,000
1957 · Bemidji
USGS Topo · 1:250,000
1958 · Bemidji
USGS Topo · 1:250,000
1972 · Blackduck
USGS Topo · 1:24,000
1972 · Saum NE
USGS Topo · 1:24,000
1972 · White Fish Lake
USGS Topo · 1:24,000
1972 · O'Brien Lookout Tower
USGS Topo · 1:24,000
1972 · Borden Lake
USGS Topo · 1:24,000