tag:blogger.com,1999:blog-21010261.post8362099035441620269..comments2024-03-28T19:28:10.100-04:00Comments on <b>Rock Piles</b>: Going through old photos - mortars on the Hill next to Rt 3 in Billerica Town Forestpwaxhttp://www.blogger.com/profile/16647940752050937588noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-21010261.post-69772376645646755672016-09-11T21:28:05.674-04:002016-09-11T21:28:05.674-04:00Impressive boulder. Are there cup marks on it, to...Impressive boulder. Are there cup marks on it, too?Normanhttps://www.blogger.com/profile/10560996385875773347noreply@blogger.com