Acadia National Park: Check its Map, Geology, History, and Facts

Jul 13, 2025, 03:10 EDT

Acadia National Park in Maine is a spectacular blend of rugged coastline, granite mountains, and dense forests. As the first national park east of the Mississippi River, it boasts a unique geological story forged by ancient volcanic activity and powerful glaciers. This park offers diverse landscapes and a rich past, attracting visitors to its beautiful, natural setting. The park is a testament to natural forces and human history, drawing millions annually to witness its stunning beauty.

Acadia National Park is nestled along the picturesque coast of Maine in the United States. It is a magnificent illustration of the natural beauty of New England. Founded on July 8, 1916, it provides a unique perspective on geological forces. It has a rich human history which makes it a beloved destination for millions. It truly is a remarkable place where mountains meet the sea.

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Acadia National Park on the Map

It primarily occupies a significant portion of Mount Desert Island which is located southwest of Bar Harbor. However, the park's embrace extends further, including parts of Isle au Haut, the tip of the Schoodic Peninsula on the mainland, and several smaller outlying islands. This geographical spread gives it a diverse range of environments, from rocky shores pounded by the Atlantic to serene inland lakes and verdant forests. Within the park there is Cadillac Mountain, and it proudly stands as the tallest mountain on the U.S. Atlantic coast.

What is the Geology of Acadia National Park?

The geology of Acadia National Park is shaped by hundreds of millions of years of Earth's powerful processes. The underlying bedrock is primarily composed of ancient metamorphic rocks and igneous granites. The underlying bedrock is composed of ancient metamorphic rocks and igneous granites. Notably, much of the famous pink granite is visible across the park that was formed when molten rock cooled deep within the Earth.

However, the most recent and dramatic sculpting of Acadia's landscape came from massive glaciers during the last Ice Age, which retreated about 18,000 years ago. These colossal sheets of ice scoured and polished the granite mountains, and carved out U-shaped valleys. There are large boulders known as glacial erratics which created the park's numerous lakes and ponds, such as Jordan Pond and Eagle Lake. The park's rugged coastline with its dramatic cliffs and unique cobble beaches also bears the undeniable marks of these ancient ice flows.

What is the History of Acadia National Park?

For more than 5,000 years, the Wabanaki Confederacy lived and worked in this coastal area, depending on its wealth of land and marine resources. French explorer Samuel de Champlain set foot on Mount Desert Island in 1604, marking the start of European exploration. Because of its rocky summits, he called it "Isles des Monts Déserts," or the Island of the Bare Mountains.

Wealthy "rusticators" like artists, academics, and well-known families like the Rockefellers and Carnegies became frequent visitors to Mount Desert Island in the 19th century in an effort to protect its natural beauty. The park was established thanks in large part to their combined efforts and charitable contributions. The region was named Sieur de Monts National Monument by President Woodrow Wilson in 1916. 

It was later renamed Lafayette National Park in 1919, becoming the first national park in the eastern United States. Finally, in 1929, it was officially designated Acadia National Park. John D. Rockefeller Jr. notably funded the construction of the park's iconic 45 miles of carriage roads and granite bridges, which remain popular for walking and cycling today.

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What are the Key Facts about Acadia National Park?

Acadia National Park is a captivating National Park in the United States. Below are few key facts which you must know about:

Fact

Details

Location

Mount Desert Island (main portion), Isle au Haut, Schoodic Peninsula, Maine, USA

Established

February 26, 1919 (as Lafayette National Park, originally Sieur de Monts National Monument in 1916; renamed Acadia National Park in 1929)

Total Area

Approximately 49,075 acres (about 198.6 sq km)

Annual Visitors

Over 3.8 million (e.g., 3.88 million in 2023)

Highest Point

Cadillac Mountain (1,530 feet / 466 meters) 

Key Features

Granite mountains, rocky coastline, dense forests, lakes, ponds, historic carriage roads (45 miles), glacial features, Bass Harbor Head Light.

Geological Origin

Ancient volcanic activity, granite intrusions, and extensive shaping by glaciers during the last Ice Age.

Major Contribution

John D. Rockefeller Jr. funded the construction of the famous carriage roads and granite bridges.

Unique Status

First national park established east of the Mississippi River.

Acadia continues to be a cherished natural treasure, offering visitors a unique blend of coastal grandeur, forested trails, and a rich historical tapestry.

Manvi Upadhyaya
Manvi Upadhyaya

Content Writer

    Manvi Upadhyaya is an experienced content writer who is passionate about creating authentic content by delivering credible facts to people. She holds a degree in Journalism and Mass Communication and is fond of art, languages, culture, and education. She has been a published co-author and compiler for many anthology book projects. She creates educational and informative content for international audiences. You can reach out to her at manvi.upadhyaya@jagrannewmedia.com

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    FAQs

    • Who was influential in the creation of Acadia National Park? 
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      Private citizens and philanthropists, most notably George B. Dorr and John D. Rockefeller Jr., were highly influential. They donated significant land and funding to preserve the area, leading to its designation as a national park.
    • How did glaciers impact Acadia National Park's landscape? 
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      Glaciers profoundly shaped Acadia, carving its valleys, creating its numerous lakes and ponds, and rounding and polishing its granite mountain summits. They also left behind characteristic features like glacial erratics.
    • What is special about Acadia National Park's location? 
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      Acadia National Park is unique as the only U.S. national park in New England and the first national park established east of the Mississippi River. It's primarily located on Mount Desert Island, bringing mountains directly to the ocean.

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