tag:blogger.com,1999:blog-5211670216140060946.post3169154625563103359..comments2024-03-17T18:37:36.377-07:00Comments on Geotripper: The Other California: It's a Real Grind...Chaw'se State Historical ParkGarry Hayeshttp://www.blogger.com/profile/00531226195147986457noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-5211670216140060946.post-29317023625245980452010-10-20T07:37:42.498-07:002010-10-20T07:37:42.498-07:00I have to agree with Ron about the native health i...I have to agree with Ron about the native health issues. Glad you got to explore a cave while there.Gaelynhttps://www.blogger.com/profile/05784162697113288888noreply@blogger.comtag:blogger.com,1999:blog-5211670216140060946.post-2671003286051254202010-10-20T06:03:08.720-07:002010-10-20T06:03:08.720-07:00Marble is not the most durable choice for a grindi...Marble is not the most durable choice for a grinding stone, but I'd have to guess that the Miwoks who used these didn't suffer much acid indigestion and maybe not so much tooth wear as others who used more durable (quartz & feldspar based) mortar & pestles.Ron Schotthttps://www.blogger.com/profile/10020094512548523216noreply@blogger.com