Location:
36°34'11.92", 105°31'16"Type:
older intermediate-rhyolitic lava flows, tuff, and intrusionsAge:
Between 22 and 37 Ma before presentSignificance:
A distal outlier of the San Juan volcanic field, it is within the Sangre de Cristo Mountains and partly rsponsible for unusual rare earth oresComposition:
Rhyolite and intermediate volcanic rocks