tag:blogger.com,1999:blog-21010261.post3449239958008275863..comments2024-03-14T01:33:48.461-04:00Comments on <b>Rock Piles</b>: Moving large boulderspwaxhttp://www.blogger.com/profile/16647940752050937588noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-21010261.post-53613134215572281952014-06-26T05:36:23.566-04:002014-06-26T05:36:23.566-04:00I have not given in a lot of thought since stone w...I have not given in a lot of thought since stone walls are so hard to identify as ancient. <br /><br />I assume some are, and assume the Indians knew how to use levers and teamwork. I only think about it for walls that have boulders on top of smaller rocks - as that reverses the natural sequence of field clearing (from larger to smaller).pwaxhttps://www.blogger.com/profile/16647940752050937588noreply@blogger.com