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Method: Clean | Average | Optimistic

Atlantic Ocean U.S. Island High Points above 150 feet

Rank	Island	Peak	Elev-Ft	State	Isol-Mi
1.	Mount Desert Island	Cadillac Mountain	1528	Maine	87.0
2.	Isle au Haut	Mount Champlain	540	Maine	19.5
3.	Staten Island	Todt Hill	410	New York	13.0
4.	Long Island	Jaynes Hill	380	New York	21.2
5.	Martha's Vineyard	Marthas Vineyard High Point	311	Massachusetts	29.8
6.	Aquidneck Island	Quaker Hill	280	Rhode Island	5.8
7.	Manhattan	Manhattan High Point	265	New York	1.2
8.	Swans Island	Goose Pond Mountain	241	Maine	9.8
9.	Long Island [Frenchboro]	Long Island High Point	221	Maine	3.7
10.	Great Spruce Head Island	The Head	220	Maine	5.7
11.	Block Island	Beacon Hill	211	Rhode Island	15.4
12.	Bar Island [Machiasport]	Bar Island High Point	200	Maine	1.1
12.	Jordan Island	Jordan Island High Point	200	Maine	4.1
12.	Sebascodegan Island	Reach Mountain	200	Maine	4.7
12.	Roque Island	Roque Benchmark	200	Maine	5.0
12.	Sears Island	Sears Island High Point	200	Maine	3.1
17.	Butler Island	Big Mountain	196	Maine	1.5
17.	Conary Island	Conary Island High Point	196	Maine	4.9
17.	Head Harbor Island	Moose-A-Bec Benchmark	196	Maine	5.8
20.	Cross Island	Cross Island High Point	193	Maine	4.2
21.	Seward Neck Island	Seward Neck Island High Point	192	Maine	2.6
22.	Isleboro Island	Kedears Hill	190	Maine	3.1
23.	Kimball Island	Kimball Island High Point	187	Maine	.9
24.	Prudence Island	Prudence Island High Point	180	Rhode Island	2.6
24.	Shelter Island	Shelter Island Heights	180	New York	6.6
24.	Bald Porcupine Island	Wheeler Benchmark	180	Maine	1.3
27.	Bois Bubert Island	Bois Bubert Island High Point	178	Maine	1.3
28.	Hog Island [Essex Co.]	Choate Benchmark	177	Massachusetts	3.0
29.	Naushon Island	Mount Surat	174	Massachusetts	5.2
30.	Bar Island [Gouldsboro]	Bar Island Summit	173	Maine	1.0
31.	Calderwood Neck Island	Calderwood Neck Island High Point	171	Maine	2.3
31.	Preble Island	Preble Island High Point	171	Maine	1.0
31.	Westport Island	Westport Island High Point	171	Maine	1.1
34.	Barters Island	Barters Island High Point	170	Maine	1.2
34.	Deer Isle	Whitmore Neck	170	Maine	3.8
36.	Monhegan Island	Black Head	165	Maine	11.7
36.	Long Porcupine Island	Long Porcupine Island High Point	165	Maine	1.3
38.	Hurricane Island	Hurricane Island High Point	164	Maine	3.0
39.	Bradbury Island	Bradbury Island High Point	162	Maine	2.1
40.	Black Island	Black Island High Point	161	Maine	3.6
41.	Great Chebeague Island	Great Chebeague Island High Point	160	Maine	.2
42.	Pond Island	Pond Island High Point	158	Maine	2.1
43.	Burnt Island	Burnt Island High Point	156	Maine	6.5
44.	Nashawena Island	Nashawena Island High Point	151	Massachusetts	6.1
45.	Arrowsic Island	Arrowsic Island High Point	150	Maine	1.7
45.	Eagle Island [Hancock Co.]	Eagle Island High Point	150	Maine	1.6
45.	Cuttyhunk Island	Lookout Hill	150	Massachusetts	3.4
45.	North Haven Island	Oak Hill	150	Maine	3.9
45.	Seguin Island	Seguin Island High Point	150	Maine	3.9
45.	Southport Island	Southport Island High Point	150	Maine	2.0

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List Description

Most of the islands (38 our of 49, or 78%) on this list are in Maine. There are no islands over 150 feet high on the USA Atlantic seaboards south of New York harbor.

Acknowledgments:

Thanks to Dave Covill, who did a great deal of exhaustive data entry to get this list complete.

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