Maine Mineral & Gem Museum - Maine Mineral & Gem Museum | Bethel ME

MMGM is Closed. We'll reopen Wed at 10 AM

Maine Mineral & Gem Museum

Current Events
Upcoming Events
Past Events

MMGM Storyhour @ Bethel Library: It’s Elemental!

02-19-2026 @ 03:00 PM - 02-19-2026 @ 04:00 PM

Bethel Library, 6 Broad St., Bethel, Maine 04217

There are currently no events.

MMGM Valentine’s Day Jewelry Sale

02-05-2026 @ 12:00 AM - 02-08-2026 @ 11:59 PM

MMGM 99 Main St., Bethel ME 04217

OCMGA Monthly Meeting and Arkansas Planerite Lecture

02-06-2026 @ 06:00 PM - 02-06-2026 @ 07:30 PM

MMGM Discovery Gallery

Seminar or Talk

MMGM Pop-Up at Mr. Drew and His Animals Too Grand Opening

01-17-2026 @ 10:00 AM - 01-17-2026 @ 05:00 PM

Mr. Drew and His Animals Too, 1395 Maine Street, Poland, ME

CANCELED! Amazing Planet Views with Tom Hoffelder | Western Maine Star Chasers Astronomy Club

01-23-2026 @ 05:30 PM - 01-24-2026 @ 07:30 PM

The Gem Theater – Parking Lot, 48 Cross Street, Bethel, Maine

CANCELLED! January Astronomy Night at the Hoffelder Observatory

01-17-2026 @ 05:30 PM - 01-17-2026 @ 09:30 PM

Hoffelder Observatory Long Mountain Trail parking area 1268 Vernon Street, Albany Township, Maine

MMGM Storyhour @ Bethel Library: Julie the Rock Hound

01-15-2026 @ 03:00 PM - 01-15-2026 @ 04:00 PM

Bethel Library, 6 Broad St., Bethel ME

MMGM Exhibit @ Maine Nonprofit Day in the State House

01-13-2026 @ 08:30 AM - 01-13-2026 @ 01:00 PM

Maine State House, 2 State House Station Augusta, ME

Lecture: The Three ‘Where’s’ and a ‘Why’ with Tom Hoffelder

01-02-2026 @ 06:30 PM - 01-02-2026 @ 07:30 PM

MMGM Discovery Gallery, 99 Main St., Bethel ME

Seminar or Talk

MMGM Storyhour: “Lump of Coal” Craft at Bethel Library

12-18-2025 @ 03:00 PM - 12-18-2025 @ 04:00 PM

Bethel Library, 6 Broad St., Bethel ME

Geminid Meteor Shower Viewing with MMGM

12-12-2025 @ 05:00 PM - 12-13-2025 @ 07:30 PM

Long Mountain Trail, 1268 Vernon St, Bethel, ME