Sandy Bay Mountain anchors the southeastern corner of this terrain, marking a significant high point near the international boundary between Maine and Quebec. This remote borderland is defined by its primary drainage systems, including the South Branch Penobscot River and the headwaters of the West Branch Sandy Stream. The presence of Blake Gore Rd represents the limited human infrastructure in an area otherwise dominated by the natural hydrology and elevation of the northern woods. As documented by the U.S. Geological Survey in 2011, this landscape serves as a vital watershed for the Penobscot basin, where the topography dictates the flow of glacial-fed streams across the frontier.
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This is the sole edition of this map. No revisions or reprints were ever made.
1923 · Attean
USGS Topo · 1:62,500
1925 · Attean
USGS Topo · 1:62,500
1927 · Sandy Bay
USGS Topo · 1:48,000
1928 · Skinner
USGS Topo · 1:48,000
1930 · Sandy Bay
USGS Topo · 1:62,500
1931 · Skinner
USGS Topo · 1:62,500
1944 · Sandy Bay
USGS Topo · 1:62,500
1949 · Jackman
USGS Topo · 1:250,000
1950 · Attean
USGS Topo · 1:50,000
1963 · Jackman
USGS Topo · 1:250,000