Coe is flanked to the northeast by South Brother, and to the southwest by Mount O-J-I.

The Mount Coe trail starts at Slide Dam on Newsowdnehunk Stream east bank at around 1,190 ft (360 m).

The last 0.5 mi (0.80 km) is up the slide featured on the left margin of the photo where the trail gains around 800 ft (240 m).

Coe drains into a swampy area called "The Klondike", then into Wassataquoik Stream, and the East Branch of the Penobscot River.

Coe drain into Nesowdnehunk Stream, then into the West Branch of the Penobscot River.