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

Bloss Stone Company Quarry (Past Producer)Alfred Boyles Flagstone Quarry (Past Producer)Illinois Mine + 1 more nearby (Past Producer)Sauk Mine + 1 more nearby (Past Producer)Hildebrandt Stone Company Quarry (Past Producer)Baraboo Operation (Unknown)Cahoon Mine + 1 more nearby (Past Producer)
Past ProducerProducerProspectOccurrenceStatus unknown
7 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?

9
Past Producer

Produced ore or material at some point in the past.

1
Unknown

Status not recorded.

Status terms come from USGS MRDS records.

Minerals recorded here

No individual minerals are listed in these records.

Commodities

Iron 4Flagstone 3Silica 1

Sites

SiteCommodityMinerals recordedStatusApprox. location
Cahoon MineIron—Past Producer43.449, -89.758
Illinois MineIron—Past Producer43.430, -89.896
Sauk MineIron—Past Producer43.441, -89.880
Alfred Boyles Flagstone QuarryFlagstone—Past Producer43.471, -89.933
Illinois Mine——Past Producer43.430, -89.896
Baraboo OperationSilica—Unknown43.470, -89.745
Sauk MineIron—Past Producer43.441, -89.880
Hildebrandt Stone Company QuarryFlagstone—Past Producer43.228, -89.844
Cahoon Mine——Past Producer43.449, -89.758
Bloss Stone Company QuarryFlagstone—Past Producer43.489, -89.927

Fossil collections

The Paleobiology Database lists 1 fossil collection records in Sauk County. These are research records, not public dig sites.

Nearby counties

Dane County · Marquette County · Iowa County · Vernon County · Green County

Wisconsin mineral guides

Back to all Wisconsin 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