Red Mountain Sep 16

An unusual breached cinder cone on the Kaibab Plateau between Flagstaff and Grand Canyon
P9010082   RED MOUNTAIN P9010083 P9010084   Starting a short distance in from Hwy 180. Professional geologist Ivo Lucchita has joined us today. P9010085
P9010087 P9010089   First view of the breached cone. The breach is believed to result from a steam explosion after the initial eruption; the crater is on the other side of the rear wall. P9010090 P9010091
P9010092 P9010093 P9010094   We are already walking on cinder fines washed out of the breach P9010095   The wash forms an easy way in
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P9010101 P9010102 P9010103 P9010104   The USFS has built a check dam to slow down erosion
P9010106   It's possible to climb the cemented cinder sides of the wash, though this is difficult because of  the smll gravel left by surface weathering P9010107 P9010108   Cinder in this unusual cone has been cemented by early hydrothermal action P9010110
P9010111 P9010112   Looking back at the 'entrance' wash P9010113 P9010114
P9010116 tonemapped   A sparse ponderosa forest grows inside the breach... P9010117   ...which is surrounded by hoodoos P9010118 P9010120
P9010121   Capstones are visible on some of them P9010122 P9010123 P9010124
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P9010130 P9010131 P9010132 P9010133 tonemapped   These lava bombs were ejected with the cinder
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P9010148 P9010149 P9010150 P9010151   Starting back...
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