Located on Business Rt. 1 in Damariscotta, the Whaleback Middens are the remains of once-giant mounds of oyster, clam, and mussel shells left by indigenous peoples 1000-2000 years ago. Before being heavily mined for lime in the 1800s, the Whaleback Midden was one of the largest in the United States. Today it is an important archaeological site where thousands of Native American artifacts have been discovered.
A short loop trail through a beautiful orchard takes you through some of the midden remains to the river. Note the Glidden Midden on the other side of the river; it is the largest north of Georgia. Cache is just a little off the beaten path past the middens.
Parking is available at N 44 02.494, W069 30.631. A kiosk at the start of the trail gives you the entire history of the Middens--truly fascinating stuff. Enjoy!