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

Sheffield Truck Plaza - Back Lot Mine (Unknown)Joseph R. Brady - Brady Sand Mine (Unknown)Gary Deposit (Occurrence)Hamilton County Reconniassance (Prospect)Swift Creek Mine + 1 more nearby (Producer)Suwannee River Mine (Past Producer)North Florida-South Georgia District (Past Producer)White Springs Phos-Acid Plant (Plant)White Springs Deposit (Prospect)
Past ProducerProducerProspectOccurrenceStatus unknown
9 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.

Woof’s favorite find

Suwannee River Mine

We picked it because its USGS record mentions 2 gem or collectible minerals (Quartz, Fluorite) and 2 of our card minerals overall. That ties with 3 other site(s), so we broke the tie by mine status (past producers first), then USGS record quality, then name. USGS lists it as past producer for Phosphorus-Phosphates. Minerals mentioned: Quartz, Fluorite. Approx. location 30.439, -82.814. 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?

2
Producer

Was producing when the record was made.

2
Past Producer

Produced ore or material at some point in the past.

2
Prospect

Explored or test-dug, with no recorded production.

2
Unknown

Status not recorded.

1
Occurrence

The mineral was noted here, without development.

1
Plant

A processing plant site.

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

Collophane 4

Commodities

Phosphorus-Phosphates 9Sand 1

Sites

SiteCommodityMinerals recordedStatusApprox. location
Swift Creek MinePhosphorus-PhosphatesCollophaneProducer30.447, -82.856
Suwannee River MinePhosphorus-PhosphatesCollophanePast Producer30.439, -82.814
Psc Phosphate (White Springs) - Hamilton MinePhosphorus-PhosphatesCollophaneProducer30.450, -82.850
Sheffield Truck Plaza - Back Lot MinePhosphorus-PhosphatesCollophaneUnknown30.517, -83.058
Gary DepositPhosphorus-Phosphates—Occurrence30.600, -83.000
Hamilton County ReconniassancePhosphorus-Phosphates—Prospect30.471, -82.936
White Springs Phos-Acid PlantPhosphorus-Phosphates—Plant30.339, -82.783
White Springs DepositPhosphorus-Phosphates—Prospect30.341, -82.713
Joseph R. Brady - Brady Sand MineSand—Unknown30.553, -83.026
North Florida-South Georgia DistrictPhosphorus-Phosphates—Past Producer30.400, -82.808

Fossil collections

The Paleobiology Database lists 15 fossil collection records in Hamilton County. These are research records, not public dig sites.

Nearby counties

Columbia County · Baker County · Madison County · Suwannee County · Lafayette County

Florida mineral guides

Back to all Florida 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