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

Twin No.2 (Prospect)Daisy Mae No.5 (Prospect)Willett & Midland No. 1 Quads (Past Producer)Falcon Group (Prospect)Table Mountain Claims (Prospect)Ladner Quad (Past Producer)Buffalo Quad (Past Producer)Unnamed Mine + 6 more nearby (Past Producer)Buddy Claims (Prospect)Last Chance Group + 3 more nearby (Past Producer)Daisey Mae No.6 + 2 more nearby (Prospect)D-2 Claims + 2 more nearby (Prospect)Mink Group + 6 more nearby (Past Producer)Riley Group + 2 more nearby (Past Producer)Pickpocket Mine + 6 more nearby (Past Producer)Cedar Butte Claims (Prospect)Last Chance (Past Producer)Mccurdy Lease + 1 more nearby (Prospect)Flat Top Group + 1 more nearby (Past Producer)Lars Group (Prospect)Calamity Jane Group (Prospect)Rattlesnake Group (Prospect)Red No.1 (Prospect)Bob Cat Claims (Prospect)Cedar Canyon - Sple. No. 9 (Occurrence)Cedar Canyon - Sple. No. 1 + 7 more nearby (Occurrence)Ralph Quad (Occurrence)Thyboe Prospect + 1 more nearby (Past Producer)Unnamed Mine + 1 more nearby (Producer)Cedar Canyon - Thybo Well (Occurrence)Hilltop (Past Producer)Cedar Canyon - Thybo Spring + 3 more nearby (Occurrence)State Lease (Prospect)Unnamed Mine (Producer)Unnamed Mine + 5 more nearby (Producer)Hinds Claims + 2 more nearby (Prospect)Unnamed Mine + 3 more nearby (Producer)Unnamed Mine + 5 more nearby (Producer)
Past ProducerProducerProspectOccurrenceStatus unknown
38 paw pins; nearby sites are grouped into one pin. Hover or tap a pin for the site name. County outline: US Census Bureau cartographic boundary file (2023). Locations approximate.

Field cards: what kind of sites?

43
Prospect

Explored or test-dug, with no recorded production.

28
Past Producer

Produced ore or material at some point in the past.

15
Occurrence

The mineral was noted here, without development.

8
Producer

Was producing when the record was made.

Status terms come from USGS MRDS records.

Minerals recorded here

Coal 11Carnotite 9Lignite 2Clay 1

Commodities

Uranium 79Lignite 14Sand and Gravel 1Construction 1Petroleum (Oil) 1

Sites (first 40)

SiteCommodityMinerals recordedStatusApprox. location
Cedar Canyon - Sple. No. 6—CarnotiteOccurrence45.370, -103.161
Cedar Canyon - Sple. No. 5—CarnotiteOccurrence45.371, -103.161
Cedar Canyon - Sple. No. 3—CarnotiteOccurrence45.371, -103.161
Cedar Canyon—CarnotiteOccurrence45.371, -103.159
Cedar Canyon - Sple. No. 7—CarnotiteOccurrence45.370, -103.162
Cedar Canyon - Sple. No. 4—CarnotiteOccurrence45.371, -103.161
Cedar Canyon - Sple. No. 2—CarnotiteOccurrence45.371, -103.161
Cedar Canyon - Sple. No. 1—CarnotiteOccurrence45.371, -103.161
Buffalo Quad—Carnotite, Clay, LignitePast Producer45.625, -103.626
Unnamed MineUraniumCoalProducer45.383, -103.053
Unnamed MineUraniumCoalProducer45.384, -103.100
Unnamed MineUraniumCoalProducer45.374, -103.117
Lonesome Pete MineUranium, LigniteCoalOccurrence45.754, -103.587
Unnamed MineUraniumCoalProducer45.402, -103.059
Pickpocket MineUranium, LigniteCoalPast Producer45.827, -103.461
Unnamed MineUranium, LigniteCoalPast Producer45.762, -103.587
Relf MineUranium, LigniteCoalPast Producer45.830, -103.468
Unnamed MineUraniumCoalProducer45.475, -103.159
Unnamed MineUraniumCoalProducer45.402, -103.056
Unnamed MineUraniumCoalProducer45.348, -103.055
Unnamed MineUraniumLigniteProducer45.359, -103.084
Thyboe ProspectUranium—Past Producer45.536, -103.126
Cedar Canyon - Thybo SpringUranium—Occurrence45.376, -103.144
Cedar Canyon - Sple. No. 9——Occurrence45.400, -103.170
Cedar Canyon - Thybo WellUranium—Occurrence45.415, -103.136
Cedar Canyon - Sple. No. 8——Occurrence45.363, -103.157
Mink GroupUranium—Past Producer45.860, -103.481
Canyon GroupUranium—Prospect45.348, -103.054
State LeaseUranium—Prospect45.352, -103.144
Billy DaleUranium—Past Producer45.830, -103.449
Last Chance GroupUranium—Past Producer45.860, -103.521
Darky ClaimsUranium—Prospect45.857, -103.485
Cub LodeUranium—Prospect45.851, -103.542
Ruth LodeUranium—Prospect45.378, -103.112
Trio LodeUranium—Past Producer45.342, -103.060
HilltopUranium—Past Producer45.401, -103.148
Hinds ClaimsUranium—Prospect45.343, -103.086
Falcon GroupUranium—Prospect45.610, -103.783
Daisey Mae No.6Uranium—Prospect45.739, -103.531
Riley GroupUranium—Past Producer45.849, -103.480

Fossil collections

The Paleobiology Database lists 56 fossil collection records in Harding County. These are research records, not public dig sites.

Nearby counties

Perkins County · Butte County · Lawrence County · Meade County · Pennington County

South Dakota mineral guides

Back to all South Dakota 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