B.R. Moon 1987 Journal 18 14 April Bonanza king mine and canyon, Providence Mountains, San Bernadino county, CA. Half way up the hill we found what looked like an ammonite fossil that had crystallized in a large limestone boulder. Just above the hill, we left our packs in the canyon and went up canyon to look for pitfall trap sites. The canyon was narrow, steep sided, and very brushy; it was in sparse piñon-juniper woodland. Up the canyon even more we started finding more fossils of what looked like sea plants and corals. We found larger fossils of clams (or brachiopods?). I found a talus slope on the north side of this canyon that contained fossils in this grey limestone; some of the limestone was other other colors too - brownish, and even purple. Occasionally, we found a different kind of rock with a crystallized, mushroom shaped fossil in it. These rocks were darker, almost black in color, and were heavier than similar sized limestone chunks. We salvaged several rocks with many different fossils in them in about 2 hours before heading back down the canyon.