Somes Sound

{{Short description| Body of water in the United States}}

File:Somes Sound Mount Desert Island.JPG]]

Somes Sound is a fjard{{cite book

| url = https://books.google.com/books?id=944jBQAAQBAJ&pg=PA99

| title = Ultimate Acadia: 50 Reasons to Visit Maine's National Park

| page = 99

| year = 2013

| isbn = 978-1-60893-224-5

| publisher = Down East Books

| location =

}}

running deep into Mount Desert Island, the main site of Acadia National Park in Maine, United States. Its deepest point is approximately {{convert|175|ft|-1}}, and it is over {{convert|100|ft}} deep in several places. The sound almost splits the island in two.

While often described as the "only fjord on the East Coast",{{cite book|title=Maine Coast|author=Debbie Harmsen|publisher=Random House|year=2008|page=248|isbn=9781400019045|url=https://books.google.com/books?id=1J4iwELwzBwC&q=%22only+fjord+on+the+East+Coast%22&pg=PA248|access-date=2010-07-25}} it lacks the extreme vertical relief and anoxic sediments associated with Norwegian fjords, and is now called a fjard by officials{{cite web|title=Somes Sound, Mount Desert Island|publisher=Maine Geological Survey|date=November 1998|url=http://www.maine.gov/doc/nrimc/mgs/explore/marine/sites/nov98.htm|access-date=2010-07-25}}{{citation|title=The Story of Glaciers|work=EarthCache Program|publisher=National Park Service|url=http://www.nps.gov/acad/upload/ec_glaciers.pdf|archive-url=https://web.archive.org/web/20080224042107/http://www.nps.gov/acad/upload/ec_glaciers.pdf|url-status=dead|archive-date=February 24, 2008|access-date=2010-07-25}} — a smaller drowned glacial embayment.

Somes Sound was named for Abraham Somes, who was one of the first settlers on the island and had a home at the end of the sound in Somesville, the first village on the island.