2018 Map of Johns Island
USGS Topo · Published 2018About this map
Marshall Island and the surrounding waters of Toothacher Bay dominate this coastal survey, where the rugged maritime boundary between Knox and Hancock counties cuts through the Atlantic Ocean. The map reveals a complex archipelago of granite outcroppings and named hazards, including Sally Prude Ledge, Johns Island Sunken Ledge, and Mason Ledge. These features underscore the navigational challenges faced by local mariners and fishing fleets in the area south of Swan's Island.
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Map Details
Editions of this 2018 Johns Island Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1904 · Deer Isle
USGS Topo · 1:62,500
1904 · Swan Island
USGS Topo · 1:62,500
1905 · Penobscot Bay
USGS Topo · 1:125,000
1942 · Deer Isle
USGS Topo · 1:62,500
1943 · Swans Island
USGS Topo · 1:62,500
1944 · Deer Isle
USGS Topo · 1:62,500
1945 · Swans Island
USGS Topo · 1:62,500
1948 · Bangor
USGS Topo · 1:250,000
1948 · Bath
USGS Topo · 1:250,000
1956 · Bangor
USGS Topo · 1:250,000