Sprakers: Herkimer Diamond & Quartz Rockhounding in Montgomery County, New York

Public accessBest spot2 mineralsMontgomery County, New YorkUpdated July 2026

Minerals reported: 2
Elevation: 700 ft
Best months: April to November

The Sprakers roadcuts and quarry ground expose the same Little Falls Dolostone that hosts Herkimer diamonds, and the site is a long-known free alternative to the fee mines for finding doubly-terminated quartz. Weathered pockets here release loose crystals with minimal breaking. Reported finds include herkimer diamond, quartz. Below: coordinates, access notes, nearby spots, and trip-planning links.

Plan your visit

Generally open to casual rockhounding

County: Montgomery County
State: New York
Nearest road: Erie Canalway Trail
Coordinates: 42.89422, -74.48379

Get directions View on Google Maps

Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

Access note: Roadside dolostone exposures near Sprakers, Montgomery County. Park well off the road and stay clear of active pavement and private frontage while collecting.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Best time to visit Sprakers

31°J

34°F

43°M

56°A

69°M

76°J

80°J

79°A

72°S

60°O

47°N

36°D

Comfortable months (45 to 90°F highs)

Best months: April to November. Typical highs run 80°F in midsummer and 31°F in midwinter, with winter lows near 15°F.

Climate normals: NOAA 1991-2020 monthlies, CHERRY VALLEY 2 NNE station (14 mi away), adjusted for elevation.

Geology at Sprakers

This spot sits on Beekmantown Group, mapped as dolostone that formed roughly 495 to 470 million years ago. Carbonate rock like this dissolves and weathers readily, so fresh road cuts, quarries, and creek exposures are typically the most productive ground.

Mapped unit: Beekmantown Group
Age: 495–470 Ma (Furongian to Early Ordovician)
Rock types: dolostone
Elevation: 700 ft

Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.

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Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

New York State Museum, Geological Survey
NYS DEC land use rules
Herkimer Diamond Mines
Community submissions reviewed against published agency rules

Found at Sprakers

Each name opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Nearby rockhounding spots

Other rockhounding spots within driving distance of Sprakers.

Mohawk ValleyMontgomery County, New York · 1 mi awayHerkimer Diamond
Herkimer Mountain Diamond MineMontgomery County, New York · 2 mi awayHerkimer Diamond
Diamond Acres MineMontgomery County, New York · 5 mi awayHerkimer Diamond, Quartz
Diamond Acres MineMontgomery County, New York · 5 mi away
Soul Phamily FarmMontgomery County, New York · 12 mi awayHerkimer Diamond
Crystal Grove Diamond MineFulton County, New York · 13 mi awayHerkimer Diamond
Crystal DazeFulton County, New York · 16 mi awayHerkimer Diamond
Russell Family MineHerkimer County, New York · 20 mi awayHerkimer Diamond

Across the state line from Sprakers

Sprakers is close enough to the New York border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

BenningtonBennington County, Vermont · 69 mi awayBlue Quartz, Garnet, Feldspar
PittsfieldBerkshire County, Massachusetts · 72 mi awayGreen Quartz
DaltonBerkshire County, Massachusetts · 72 mi awayAsbestos, Talc
Monument MountainBerkshire County, Massachusetts · 73 mi awaySmoky Quartz

Sprakers FAQ

Where is Sprakers?+

Sprakers is in Montgomery County, New York, at 42.89422, -74.48379. Nearest road: Erie Canalway Trail.

What rocks and minerals can you find at Sprakers?+

Sprakers is reported to produce Herkimer Diamond, Quartz.

Is collecting allowed at Sprakers?+

Generally open to casual rockhounding. Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Sprakers?+

A rock hammer, a small pry bar, gloves, and safety glasses cover most crystal ground. A screen helps in loose pocket soil, and newspaper protects points on the way out.

When is the best time to visit Sprakers?+

The most comfortable months at Sprakers are April to November.

How do I get to Sprakers?+

Open the directions link to navigate to 42.89422, -74.48379 in Google Maps. The nearest road is Erie Canalway Trail.

More rockhounding in New York

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