RockWoof
Check access before you go. Most sites listed here are old mines, quarries or prospects, and many are on private land or active mining claims. Get the landowner's permission, check the rules of the agency that manages any public land, and never enter mine workings. Locations are approximate.

Sketch map

Artesian Well #23 (Producer)San Isabel Deposit (Past Producer)Dinosaur No. 1 Claim + 1 more nearby (Occurrence)Mineral Rights Mine + 2 more nearby (Past Producer)Artesian Well #24 (Producer)Overton-Steele Hollow Iron Deposits (Past Producer)Artesian Well #25 (Producer)
Past ProducerProducerProspectOccurrenceStatus unknown
7 paw pins; nearby sites are grouped into one pin. Hover or tap a pin for the site name. 1 site(s) with USGS coordinates outside the outline are not pinned. County outline: US Census Bureau cartographic boundary file (2023). Locations approximate.

Woof’s favorite find

Dinosaur No. 1 Claim

We picked it because its USGS record mentions 1 gem or collectible mineral (Quartz) and 1 of our card minerals overall. No other named site here scores as high on both counts. USGS lists it as unknown. Minerals mentioned: Quartz. Approx. location 38.495, -104.877. USGS record.

Ask first: a USGS record doesn’t mean you can visit. Find out who owns the land and get permission before collecting.

Field cards: what kind of sites?

6
Past Producer

Produced ore or material at some point in the past.

3
Producer

Was producing when the record was made.

1
Occurrence

The mineral was noted here, without development.

1
Unknown

Status not recorded.

Status terms come from USGS MRDS records.

Mineral cards

Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.

Minerals recorded here

Limonite 1Pyrite 1Siderite 1Carnotite 1Uraninite 1

Commodities

Uranium 4Geothermal 3Iron 1Vermiculite 1

Sites

SiteCommodityMinerals recordedStatusApprox. location
George Avery Ranch MineUraniumCarnotite, UraninitePast Producer38.654, -104.827
Overton-Steele Hollow Iron DepositsIronLimonite, Pyrite, SideritePast Producer38.353, -104.580
Dinosaur No. 1 ClaimUranium—Occurrence38.497, -104.884
Artesian Well #24Geothermal—Producer38.258, -104.608
Artesian Well #23Geothermal—Producer38.172, -105.014
San Isabel DepositVermiculite—Past Producer37.975, -105.024
Artesian Well #25Geothermal—Producer38.283, -104.484
Mineral Rights MineUranium—Past Producer38.511, -104.822
George Avery Ranch——Past Producer38.511, -104.823
Kathryn #2 InclineUranium—Past Producer38.511, -104.822
Dinosaur No. 1 Claim——Unknown38.495, -104.877

Fossil collections

The Paleobiology Database lists 90 fossil collection records in Pueblo County. These are research records, not public dig sites.

Nearby counties

El Paso County · Teller County · Fremont County · Custer County · Douglas County

Colorado mineral guides

Back to all Colorado counties.

Related articles

How we built this page: we counted named sites in the USGS Mineral Resources Data System (MRDS) for this area, left out sand, gravel, crushed stone, clay pits and unnamed sites, grouped them by Census county, and linked every site to its USGS record. We did not visit these sites, and MRDS does not tell you who owns the land or whether collecting is allowed.

Source: USGS Mineral Resources Data System (MRDS). USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date. Each site links to its USGS record.

Updated