Genesse River Area: Agate Rockhounding in Monroe County, New York

Updated June 2026

Genesse River Area is a mapped rockhounding spot in Monroe County, New York. Reported finds include agate. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Monroe County
State: New York
Nearest road: Northview Terrace
Postcode: 14621
Coordinates: 43.18725, -77.62478

Geology at Genesse River Area

This spot sits on Irondequoit Limestone thru Kodak Sandstone, mapped as shale that formed roughly 445 to 425 million years ago. Tough silica like agate, jasper, and chert typically weathers out of beds like these and collects as float in drainages and on deflation surfaces.

Mapped unit: Irondequoit Limestone thru Kodak Sandstone
Age: 445–425 Ma (Llandovery to Wenlock)
Rock types: shale
Elevation: 290 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.

Best time to visit Genesse River Area

Best months: April to November. Typical highs run 83°F in midsummer and 34°F in midwinter, with winter lows near 20°F.

Climate normals: NOAA 1991-2020 monthlies, ROCHESTER GTR INTL station (5 mi away), adjusted for elevation.

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.

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.

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.

Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.

Found at Genesse River Area

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

Agate Encyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of Genesse River Area.

Genesse River Area FAQ

Where is Genesse River Area?+

Genesse River Area is in Monroe County, New York, at 43.18725, -77.62478. Nearest road: Northview Terrace.

What rocks and minerals can you find at Genesse River Area?+

Genesse River Area is reported to produce Agate.

Is collecting allowed at Genesse River Area?+

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 Genesse River Area?+

Most agate and jasper is surface float: bring a spray bottle, a pick or small shovel, and a sturdy bag. Wet stones show their banding and translucence.

When is the best time to visit Genesse River Area?+

The most comfortable months at Genesse River Area are April to November.

How do I get to Genesse River Area?+

Open the directions link to navigate to 43.18725, -77.62478 in Google Maps. The nearest road is Northview Terrace.

More rockhounding in New York

See all 74 New York spots →

Open Genesse River Area on the map

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