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

Today's Hours: 10 AM to 5 PM

Maine Mineral & Gem Museum

Current Events
Upcoming Events
Past Events

MMGM Field Trip: Geology Walk at Bucks & Lapham Ledge

10-12-2026 @ 09:30 AM - 10-12-2026@ 11:30 AM

Bucks and Lapham Ledge, Greenwood, Maine

Stones to Stardust Tours

06-27-2026 @ 09:00 AM - 09-05-2026@ 10:00 AM

99 Main St. Bethel, ME

Stones to Stardust Tours

06-29-2026 @ 09:00 AM - 09-08-2026@ 10:00 AM

99 Main St. Bethel, ME

Name MMGM’s New Backhoe! Enter the Contest to Win!

08-05-2026 @ 12:00 AM - 08-22-2026@ 05:00 PM

May Astronomy Night in Western Maine at Hoffelder Observatory

05-08-2026 @ 09:00 PM - 05-16-2026@ 10:30 PM

Hoffelder Observatory Long Mountain Trail Parking Area 1268 Vernon Street, Albany, Maine

MMGM Field Trip: Tamminen–Waisanen Quarry

07-10-2026 @ 09:30 AM - 07-10-2026@ 11:30 AM

Tamminen-Waisanen Quarry, Greenwood (Frank C. Perham Mineral Park)

April Astronomy Nights: Western Maine Star Chasers

04-10-2026 @ 08:00 PM - 04-18-2026@ 09:30 PM

Tom Hoffelder Observatory, Parking Area for Long Mountain Trail, 1268 Vernon St., Albany TWP, ME

Oxford County Mineral & Gem Association Live Mineral Auction at MMGM

03-06-2026 @ 06:00 PM - 03-06-2026

Maine Mineral & Gem Museum

MMGM Storyhour @ Bethel Library: Famous Women Geologists and Scientists!

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

Bethel Library, 6 Broad St., Bethel, Maine

CANCELED DUE TO CLOUDS! Western Maine Star Chasers: A Glimpse of Mercury and the Moon

02-18-2026 @ 05:30 PM - 02-18-2026

The Gem Theater Parking Lot, 48 Cross St., Bethel, Maine

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

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

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