Cadillac Mountain is located on Mount Desert Island, within Acadia National Park, in the U.S. state of Maine.

[5] Mount Desert Island provided the Wabanaki with a place to meet, trade, fish, and hunt.

The summit also played a significant role during World War II as a base for early-warning warcraft detection.

[4] The mountain's height and location made it the ideal place for a radar facility to achieve strong signals.

[4] Today the mountain continues to be used for communication by the police, National Park Service, Coast Guard, and fire department.