Digging up our own N. American mythology

So many of our place names come from ancient peoples we know very little about; for example, the states of Connecticut and Massachusetts, the towns of Ossipee, Pawtucket, and Agawam; Mt. Monadnock and Mt. Katahdin; Lake Winnipesaukee and, my favorite, a lake in Webster, Mass. The abbreviated name is Lake Chaubunagungamaug, but I like the long name, Chargoggagoggmanchauggagoggchaubunagungamaugg. I wish somebody would rhyme it in a rap song.