kayakbird Posted March 4, 2017 Share Posted March 4, 2017 https://pubs.usgs.gov/pp/pp1677/pdf/pp1677.pdf Happened to notice this PDF which I used in a thread about GP0234 BM 12 several years ago and finally scrolled down through it to find references to the calls for GAGE RM 1. Mystery drill hole found in 18 November 2011. Might be worth one more kayak trip up from the Grand Canyon float trip put in point. kayakbird Quote Link to comment
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