Where to Find Quartz in Colorado
Colorado has 5 mapped collecting spots that report quartz, spread across 4 counties. The largest share sits in Saguache County with 2 spots. 3 of the spots are on land mapped as publicly accessible, and 1 is a fee-dig site.
Every quartz spot we track in Colorado
Best spotDel Norte Thunder Egg BedsSaguache County, ColoradoPublic access · Plume Agate, Moss Agate, Chalcedony +2
Best spotCrystal HillSaguache County, ColoradoPublic access · Amethyst, Quartz, Smoky Quartz
Last Chance MineMineral County, ColoradoFee dig · Amethyst, Agate, Chalcedony +7
Sentinel Rock and Specimen RockEl Paso County, ColoradoPublic access · Amazonite, Fluorite, Goethite +2
Specimen MountainLarimer County, ColoradoPermission required · Allophane, Calcite, Agate +2
Standout quartz spots in Colorado
Hand-picked from the full list above, with the reason each one earns a trip.
Crystal Hill
Saguache County
Crystal Hill near La Garita is documented by the USGS as a source of clear rock crystal and pale lavender amethyst in brecciated volcanic rock, a San Luis Valley collecting site worked since the 1880s.
Del Norte Thunder Egg Beds
Saguache County
The thunderegg beds northwest of Del Norte have yielded plume and moss agate from rhyolite flows since the late 1800s, with chalcedony, common opal, and quartz-lined cavities documented at the locality.
Best counties for quartz in Colorado
Ranked by the number of mapped quartz spots. County links open the full rockhounding page for that county.
Before you go
Read the quartz identification guide so you know what a keeper looks like in the field: Quartz in the encyclopedia.
