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

North Bridgman Pit (Past Producer)South Bridgman Site (Past Producer)Gulliver-Peters Site (Producer)Bridgman Pit & Mill/Martin-Marietta + 1 more nearby (Producer)Nadeau Pit (Producer)
Past ProducerProducerProspectOccurrenceStatus unknown
5 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

Garage Site

We picked it because its USGS record mentions 1 gem or collectible mineral (Quartz) and 1 of our card minerals overall. That ties with 4 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 Silica. Minerals mentioned: Quartz. Approx. location 41.954, -86.557. 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?

4
Past Producer

Produced ore or material at some point in the past.

3
Producer

Was producing when the record was made.

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

Quartz 5

Commodities

Silica 6Zinc 1

Sites

SiteCommodityMinerals recordedStatusApprox. location
North Bridgman PitSilicaQuartzPast Producer41.954, -86.567
Nadeau PitSilicaQuartzProducer42.238, -86.342
South Bridgman SiteSilicaQuartzPast Producer41.932, -86.575
Gulliver-Peters SiteSilicaQuartzProducer41.984, -86.557
Garage SiteSilicaQuartzPast Producer41.954, -86.557
Bridgman Pit & Mill/Martin-MariettaSilica—Producer41.957, -86.553
Mich Std Alloys--Benton Harbor, Mi.Zinc—Past Producer42.699, -86.453

Fossil collections

The Paleobiology Database lists 25 fossil collection records in Berrien County. These are research records, not public dig sites.

Nearby counties

Van Buren County · Allegan County · Calhoun County · Ottawa County · Branch County

Michigan mineral guides

Back to all Michigan 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