#DoanesRock in Eastham, MA is the largest #glacialerratic on #CapeCod. Eighteen feet high, it's estimated another twelve feet are buried. Pushed into position by the #LaurentideIceSheet perhaps 18,000 years ago, it was this glacial movement that formed the Cape itself. . . Named for John Doane, an early resident and important politician in the early days of Plymouth Colony. . . You can find the rock at a picnic are as on the way to Coast Guard Beach on #CapeCodNationalSeashore . . . #igersnewengland #igerscapecod #igersma #igersmass #visitma #geology #geological #glacier (at Doane Rock Picnic Area)