Intrusive igneous rock.
Acadia national park granite.
History of acadia national park.
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Acadia national park protects the natural beauty of the highest rocky headlands along the atlantic coastline of the united states an abundance of habitats and a rich cultural heritage.
Intrusive or plutonic igneous rock forms when magma remains inside the earth s crust where it cools and solidifies in chambers within pre existing rock.
At 3 5 million visits a year it s one of the top 10 most visited national parks in the united states.
The varied landscape of acadia national park is the result of continuing geologic processes.
Nps photo by georgia hybels.
The weathering of granite ridges is one such activity.
But the region had a long history of habitation before receiving this distinction.
The joints enlarge and expand when water fills them and freezes.
Visitors enjoy 27 miles of historic motor roads 158.
The park attracts 3 5 million visitors annually making it one of the top ten most visited national park in the united states.
National parks image gallery the ocean pounds acadia national park wearing away everything but the earth s hard granite core.
Large joints or fractures in the rock form square blocks.
Dark colored diabase dikes intrude through light colored granite at acadia national park maine.