Portal stands as a prominent border crossing at the international boundary between the United States of America and Canada, defined by the convergence of rail lines and early road networks like International St and Railway Ave. Further south, the town of Lignite anchors the agricultural and industrial landscape of Burke County. The area is dotted with numerous small wetlands and water bodies, most notably Little Slough, which characterize the prairie pothole region of the northern plains.
36 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.
1947 · Flaxton
USGS Topo · 1:24,000
1948 · Flaxton
USGS Topo · 1:24,000
1948 · Beaver Lake
USGS Topo · 1:24,000
1948 · Woburn
USGS Topo · 1:24,000
1948 · Stampede
USGS Topo · 1:24,000
1949 · Rennie Lake
USGS Topo · 1:24,000
1949 · Portal
USGS Topo · 1:24,000
1950 · Flaxton
USGS Topo · 1:62,500
1950 · Portal
USGS Topo · 1:62,500
1953 · Williston
USGS Topo · 1:250,000