Hanover: Jasper & Quartz Rockhounding in Grafton County, New Hampshire

Updated July 2026

Hanover is a mapped rockhounding spot in Grafton County, New Hampshire. Reported finds include jasper, quartz. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Check locally
County: Grafton County
State: New Hampshire
Nearest road: Holts Ledge Trail
Postcode: 03769
Coordinates: 43.73539, -72.14275

Geology at Hanover

This spot sits on Fitch and Clough Formations, undivided, mapped as quartzite, metasedimentary, and muscovite schist that formed roughly 445 to 420 million years ago. Metamorphic rock like this weathers into resistant float, and minerals that survive transport typically concentrate in nearby drainages.

Mapped unit: Fitch and Clough Formations, undivided
Age: 445–420 Ma (Silurian)
Rock types: quartzite, metasedimentary, and muscovite schist
Elevation: 2,200 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 Hanover

Best months: April to October. Typical highs run 76°F in midsummer and 23°F in midwinter, with winter lows near 0°F.

Climate normals: NOAA 1991-2020 monthlies, UNION VILLAGE DAM station (7 mi away), adjusted for elevation.

Land & collecting status

Confirm rules before collecting

Land status here is not confirmed. Verify with the managing agency before collecting — federal, state, and tribal rules differ.

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 Hanover

Each chip 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 Hanover.

Across the state line from Hanover

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

Hanover FAQ

Where is Hanover?+

Hanover is in Grafton County, New Hampshire, at 43.73539, -72.14275. Nearest road: Holts Ledge Trail.

What rocks and minerals can you find at Hanover?+

Hanover is reported to produce Jasper, Quartz.

Is collecting allowed at Hanover?+

Confirm rules before collecting. Land status here is not confirmed. Verify with the managing agency before collecting — federal, state, and tribal rules differ. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Hanover?+

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 Hanover?+

The most comfortable months at Hanover are April to October.

How do I get to Hanover?+

Open the directions link to navigate to 43.73539, -72.14275 in Google Maps. The nearest road is Holts Ledge Trail.

More rockhounding in New Hampshire

See all 38 New Hampshire spots →

Open Hanover on the map

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