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

Martin Marietta Refractories Quarry (Past Producer)Ohio Lime Company Quarry (Past Producer)Gibonsburg Plant Quarry + 1 more nearby (Past Producer)Ohio Quarry + 1 more nearby (Past Producer)
Past ProducerProducerProspectOccurrenceStatus unknown
4 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?

5
Past Producer

Produced ore or material at some point in the past.

1
Producer

Was producing when the record was made.

Status terms come from USGS MRDS records.

Minerals recorded here

Calcite 5

Commodities

Calcium 6

Sites

SiteCommodityMinerals recordedStatusApprox. location
Ohio QuarryCalciumCalcitePast Producer41.314, -83.281
Gibonsburg Plant QuarryCalciumCalcitePast Producer41.395, -83.333
Ohio Lime Company QuarryCalciumCalcitePast Producer41.435, -83.356
Martin Marietta Refractories QuarryCalciumCalcitePast Producer41.469, -83.364
Gibonsburg QuarryCalciumCalcitePast Producer41.396, -83.333
Je Baker/ Millersville, OhioCalcium—Producer41.313, -83.277

Fossil collections

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

Nearby counties

Ottawa County · Seneca County · Lucas County · Erie County · Defiance County

Back to all Ohio 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 USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date.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