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Rico District (Pioneer District), Dolores Co., Colorado, USA

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Location is approximate, estimate based on other nearby localities.
Latitude & Longitude (WGS84): 37° North , 108° West (est.)
Margin of Error:~1km

Also known as Pioneer district. Ag, Au, Pb, Zn, Cu.

Mineral List

Mineral list contains entries from the region specified including sub-localities

Rock Types Recorded

Entries shown in red are rocks recorded for this region.

Note: this is a very new system on and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

82 valid minerals.

Localities in this Region


The above list contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


McKnight, Edwin Thor (1974) Geology and ore deposits of the Rico District, Colorado. USGS Professional Paper 723.

Mineralogical Record: (1985): 16: 203-216.

Eckel, E. B. (1997), Minerals of Colorado.

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