BLM Resources for Rockhounds San Diego Gem and Mineral Society http://www.sdmg.org/sdmg-public/resources/blm-resources/ Rockhounds could hit rock bottom in 2018 by Lisbet Thoresen, The Pegmatite - December 2017 Page 13 http://www.sdmg.org/articles/201712/201712_Rockhounds_could_hit_rock_bottom_in_2018.pdf Yours, Paul H.