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

Moira Deposit (Past Producer)Alice Prospect (Occurrence)Bangor Deposit (Past Producer)Malone Mines (Past Producer)Skerry Mine + 1 more nearby (Past Producer)Arthur Carlin Property Deposit (Prospect)Furnace Mountain Anomaly (Past Producer)Ore Bed Mountain Prospect (Occurrence)Meacham Lake Prospect (Occurrence)Duane Mines (Past Producer)Briggs Prospect + 2 more nearby (Occurrence)Northern Adriondack Quarry (Past Producer)Owl's Head Mine + 1 more nearby (Past Producer)Brewer Hill Mine + 1 more nearby (Past Producer)Saranac Juction Quarry (Past Producer)Ore Bed Prospect (Occurrence)C. C. Harris Property Deposit (Occurrence)Orebed Prospect (Prospect)Unnamed Quarry (Past Producer)Bloomingdale Station Quarry (Past Producer)Bellons Magnetite Prospect (Prospect)Bannerhouse Mine + 1 more nearby (Past Producer)Tremble Property Deposit (Past Producer)Woodruff Fall Quarry (Past Producer)Franklin Falls Prospect + 1 more nearby (Occurrence)Duncan Mountain Prospect + 1 more nearby (Occurrence)
Past ProducerProducerProspectOccurrenceStatus unknown
26 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

Brewer Hill Mine

We picked it because its USGS record mentions 1 of the minerals on our cards and 1 of our card minerals overall. That ties with 1 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 Iron, Titanium, Metal. Minerals mentioned: Magnetite. Approx. location 44.625, -74.180. 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?

16
Past Producer

Produced ore or material at some point in the past.

11
Prospect

Explored or test-dug, with no recorded production.

8
Occurrence

The mineral was noted here, without development.

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

Magnetite 2

Commodities

Iron 23Granite 4Graphite 3Silica 2Titanium 1Metal 1Marble 1Dimension 1Flagstone 1

Sites

SiteCommodityMinerals recordedStatusApprox. location
Brewer Hill MineIron, Titanium, MetalMagnetitePast Producer44.625, -74.180
Duane MinesIronMagnetitePast Producer44.657, -74.264
Unnamed QuarryGranite—Past Producer44.507, -74.075
Owl's Head MineIron—Past Producer44.744, -74.162
Duncan Mountain ProspectIron—Occurrence44.514, -73.923
Tupper Lake QuarryGranite—Past Producer44.242, -73.456
Bloomingdale Station QuarryGranite—Past Producer44.425, -74.063
Saranac Juction QuarryGranite—Past Producer44.374, -74.195
Bannerhouse MineIron—Past Producer44.828, -74.014
Moira DepositSilica—Past Producer44.824, -74.577
Ore Bed Mountain ProspectIron—Occurrence44.627, -74.299
Furnace Mountain AnomalyIron—Past Producer44.655, -74.316
Briggs ProspectIron—Occurrence44.687, -74.226
Meacham Lake ProspectIron—Occurrence44.586, -74.321
Franklin Falls ProspectGraphite—Occurrence44.431, -73.968
Woodruff Fall QuarryMarble, Dimension—Past Producer44.454, -73.947
Alice ProspectIron—Occurrence44.559, -74.440
Ore Bed ProspectIron—Occurrence44.710, -74.135
Skerry MineIron—Past Producer44.757, -74.376
Malone MinesIron—Past Producer44.834, -74.368
Bangor DepositSilica—Past Producer44.802, -74.414
Brewer Hill MineIron—Prospect44.633, -74.180
Tremble Property DepositIron—Past Producer44.428, -74.017
Franklin Falls ProspectGraphite—Prospect44.431, -73.969
Orebed ProspectIron—Prospect44.710, -74.101
Owls Head MineIron—Prospect44.744, -74.161
Duncan Mountain Prospect——Prospect44.513, -73.924
Studley Hill Property DepositIron—Prospect44.688, -74.227
Skerry MineIron—Prospect44.757, -74.376
Bellons Magnetite ProspectIron—Prospect44.829, -74.012
Northern Adriondack QuarryFlagstone—Past Producer44.854, -74.195
Bannerhouse MineIron—Prospect44.828, -74.006
C. C. Harris Property DepositIron—Occurrence44.329, -74.141
Briggs ProspectIron—Prospect44.687, -74.226
Arthur Carlin Property DepositGraphite—Prospect44.756, -74.320

Fossil collections

The Paleobiology Database lists 2 fossil collection records in Franklin County. These are research records, not public dig sites.

Nearby counties

Clinton County · Essex County · St. Lawrence County · Hamilton County · Warren County

New York mineral guides

Back to all New York 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