The vast reaches of the Atlantic Ocean dominate this coastal survey south of Vinalhaven, Maine. Two distinct submerged navigational hazards, Bay Ledge and Snippershan Ledge, define the maritime character of these waters. Produced by the U.S. Geological Survey in 2021, the map provides a precise modern record of the offshore topography in Knox County. The absence of landmasses beyond these named ledges underscores the isolation of this stretch of the Gulf of Maine, making it a critical reference for understanding the underwater geography that has shaped local fishing and maritime history for generations.
3 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.
1904 · Deer Isle
USGS Topo · 1:62,500
1904 · Vinalhaven
USGS Topo · 1:62,500
1905 · Penobscot Bay
USGS Topo · 1:125,000
1906 · Matinicus
USGS Topo · 1:62,500
1941 · Vinalhaven
USGS Topo · 1:62,500
1942 · Deer Isle
USGS Topo · 1:62,500
1944 · Vinalhaven
USGS Topo · 1:62,500
1944 · Deer Isle
USGS Topo · 1:62,500
1948 · Bangor
USGS Topo · 1:250,000
1948 · Bath
USGS Topo · 1:250,000