USGS1997Mineral resource potential and geology of the San Juan National Forest, ColoradoNo abstract available.Colorado↗
USGS1993Analytical results and sample locality maps of stream-sediment and heavy-mineral-concentrate samples from the San Juan National Forest, Archuleta, Dolores, Hinsdale, La Plata, Mineral, Montezuma, Rio Grande, San Juan, and San Miguel Counties, ColoradoNo abstract available.Colorado↗