Bemis Stream Prospect: Albite & Beryl Rockhounding in Franklin County, Maine

Updated June 2026

Bemis Stream Prospect is a mapped rockhounding spot in Franklin County, Maine. Reported finds include albite, beryl, green elbaite tourmaline, blue fluorapatite, purple fluorapatite, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Franklin County
State: Maine
Nearest road: Bemis Road
Coordinates: 44.82414, -70.71685

Geology at Bemis Stream Prospect

This spot sits on Rangeley Formation, "B" member, mapped as conglomerate that formed roughly 445 to 435 million years ago. Sedimentary rock like this erodes unevenly, so the most productive collecting is typically along fresh cuts, badland slopes, and active drainages.

Mapped unit: Rangeley Formation, "B" member
Age: 445–435 Ma (Llandovery)
Rock types: conglomerate
Elevation: 1,710 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 Bemis Stream Prospect

Best months: April to October. Typical highs run 75°F in midsummer and 23°F in midwinter, with winter lows near 2°F.

Climate normals: NOAA 1991-2020 monthlies, MIDDLE DAM station (10 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.

State guidance last verified: April 1, 2026

Maine Geological Survey
Maine Mineral & Gem Museum
Acadia National Park rules
Community submissions reviewed against published agency rules

Found at Bemis Stream Prospect

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 Bemis Stream Prospect.

Across the state line from Bemis Stream Prospect

Bemis Stream Prospect is close enough to the Maine border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Bemis Stream Prospect FAQ

Where is Bemis Stream Prospect?+

Bemis Stream Prospect is in Franklin County, Maine, at 44.82414, -70.71685. Nearest road: Bemis Road.

What rocks and minerals can you find at Bemis Stream Prospect?+

Bemis Stream Prospect is reported to produce Albite, Beryl, Green Elbaite Tourmaline, Blue Fluorapatite, Purple Fluorapatite, Feldspar, Mica, Quartz, Spessartine Garnet, Sphalerite, Spodumene.

Is collecting allowed at Bemis Stream Prospect?+

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 Bemis Stream Prospect?+

A rock hammer, a pry bar, gloves, and safety glasses suit pegmatite ground. Work weathered zones and check dump piles; coarse crystals often sit in decomposed rock.

When is the best time to visit Bemis Stream Prospect?+

The most comfortable months at Bemis Stream Prospect are April to October.

How do I get to Bemis Stream Prospect?+

Open the directions link to navigate to 44.82414, -70.71685 in Google Maps. The nearest road is Bemis Road.

More rockhounding in Maine

See all 31 Maine spots →

Open Bemis Stream Prospect on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.