Marker Logo HMdb.org THE HISTORICAL
MARKER DATABASE
“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Near Bar Harbor in Hancock County, Maine — The American Northeast (New England)
 

Granite Foundations

Acadia National Park

 
 
Granite Foundations Marker image. Click for full size.
By Bill Coughlin, July 12, 2017
1. Granite Foundations Marker
Inscription.
Rounded mountains, a deep lake, and sheer cliffs reveal this valley’s icy past. But long before glaciers sculpted Acadia’s surface, the granite foundation was forged deep in the Earth. Over 500 million years ago, colliding continents created a mass of hot magma, or molten rock, far below the Earth’s surface. It cooled and crystallized, creating the strong, beautiful Cadillac granite, admired for its distinctive pink, gray, and black minerals. Hundreds of millions of years of erosion, including a final polish by mile-thick glaciers, gradually shaped the resistant granite into the landscape you enjoy today.

Glacial Erratics
See the large boulder in the lake to your left? Like Bubble Rock (photo at left), it is a glacial erratic: a rock carried here by ice from a different location. Both boulders are made of Lucerne granite, glacially transported more than 30 miles from the northwest. Compare the Lucerne and Cadillac granites for differences in color and crystal size.

Moraine
As the glaciers melted, they left a mound of rock, gravel, and sand here.

Look for glacial evidence as you travel about the park. Notice the north-south alignments of ridges, valleys, elongated lakes, and coves created by rivers of ice. Watch for rocks that glaciers scattered erratically across the landscape.
 
Erected by
Granite Foundations Marker image. Click for full size.
By Bill Coughlin, July 12, 2017
2. Granite Foundations Marker
National Park Service.
 
Location. 44° 19.483′ N, 68° 15.012′ W. Marker is near Bar Harbor, Maine, in Hancock County. Marker can be reached from Park Loop Road. Touch for map. Marker is in Acadia National Park, on a walking trail beside Jordan Pond. Marker is in this post office area: Bar Harbor ME 04609, United States of America.
 
Other nearby markers. At least 8 other markers are within 3 miles of this marker, measured as the crow flies. Drink in the View (about 300 feet away, measured in a direct line); Gateway to Acadia (approx. 0.4 miles away); Carriage Roads - The Gate Lodges (approx. 0.4 miles away); Glacial Freight (approx. 0.9 miles away); Carriage Roads - Building the Roads (approx. 1.9 miles away); To the Top! (approx. 2 miles away); Cadillac Mountain (approx. 2.3 miles away); Picture Perfect? (approx. 2.3 miles away). Touch for a list and map of all markers in Bar Harbor.
 
More about this marker. The background of the marker contains a photo of the area where the marker is located. Along with the location of the marker, various landmarks are identified, including Jordan Pond, U-shaped valley, Penobscot Mountain, North and South Bubbles, Pemetic Mountain, and Cadillac Mountain.
 
Categories. Natural Features
 
Marker in Acadia National Park image. Click for full size.
By Bill Coughlin, July 12, 2017
3. Marker in Acadia National Park
The Bubbles can be seen on the far side of Jordan Pond.
Bubble Rock image. Click for full size.
By Bill Coughlin, July 12, 2017
4. Bubble Rock
This boulder is an example of a glacial erratic that is mentioned on the marker.
 
 
Credits. This page was last revised on August 4, 2017. This page originally submitted on August 4, 2017, by Bill Coughlin of North Arlington, New Jersey. This page has been viewed 53 times since then. Photos:   1, 2, 3, 4. submitted on August 4, 2017, by Bill Coughlin of North Arlington, New Jersey.
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