Welcome to the Kalamazoo Geological & Mineral Society (KGMS)
The 2027 KGMS Rock & Gem Show is April 30 - May 2, 2027, more info on the Show page
Kalamazoo Geological and Mineral Society (KGMS) sponsored field trips are open to those members in good standing. Attendance may be limited for some trips and prior registration may be required. Safety gear and protocols MUST be followed by all who participate. Contact Linda for more information regarding field trips or ideas for trip locales.
August Field Trip
Keweenaw Week 2026
Dates: August 3, 2026 to August 8, 2026
Host: Copper Country Rock & Mineral Club
Locations: Keweenaw Peninsula, MI (Copper Country)
What You Will Find: Copper, Prehnite, agate, Datolite, Epidote and Copper related minerals
Dress Code: Long pants and sturdy boots. Water shoes or high rubber boots if hunting along the shoreline are strongly suggested
Lodging: There are several choices from hotels to camprounds in the Houghton/Hancock area and you may stay where you wish.
Details: The Copper Country Rock and Mineral club' s schedule is posted on the club website ccrmc.info
Schedule of Seaman Museum Events:
Monday, August 3
9am – 6:45pm: Gift Shop Sale & Extended Hours – All customers will receive 15% off* their purchases in the gift shop - ONE DAY ONLY! *Admission not subject to discount. Some exclusions apply. Discounts cannot be combined.
7pm – 8pm: Evening lecture presented by Dr. John Rakovan, Senior Museum Curator at the New Mexico Mineral Museum. His talk will be about “New insights into the structure and formation of wire silver and gold.” This will be held in the building right across the parking lot from the museum called the Alumni Center (formerly the Advanced Technology Development Complex).
Wednesday, August 5
10am – 4pm: Annual Surplus Sale where minerals and other items will fall into 3 pricing tiers: price as marked, 20% off and 40% off. This will be held at the A.E. Seaman Mineral Museum in our outdoor area just past the parking lot.
Friday, August 7
9am - 5pm: Non-perishable Food Drive to benefit the Husky Food Access Network at Michigan Tech. Bring in 3 items to receive free admission for 1 person!
Please see the Seaman Museum website for event details
September Field Trips
September 12, 2026 (Saturday) 9:30AM - 2:30 PM, Cheney Quarry, Bellevue MI
Hosted by: Kalamazoo Geological & Mineral Society
Please email lindabergeon@yahoo.com to let Linda know if you plan to attend
LOCATION: 9400 Sand Road, Bellevue, MI 49021
Cost: FREE
WHAT WILL YOU FIND: Fossils, Calcite, Pyrite, Chalcopyrite
DRESS CODE: Long pants, sturdy boots (steel-toed highly recommended), hard hats and high visibility/safety vests are required for this field trip. Safety eyewear required when breaking rocks.
LODGING: Day trip, should not be needed.
OTHER NOTES: Park on the side of the road outside the gate and wait for directions. Bring plenty of water for hydration. A wagon or dolly is very useful. Additional suggested items to bring: hammer, sledge, chisel, wrapping material like newspaper or paper towel, sunblock and snacks. Walmart has steel-toed boots at a reasonable price.
October Field Trips
Tentative Date October 3, 2026 (Saturday) Time: TBD, Byholt Quarry, Schoolcraft MI
Hosted by: Kalamazoo Geological & Mineral Society
Point of Contact: Ken Ahrens
LOCATION: Byholt Quarry, 11360 4th Street, Schoolcraft, MI 49087
Cost: TBD
WHAT WILL YOU FIND: Petoskey Stone, Septaria, Pudding Stone, glacial rocks
DRESS CODE: Long pants, sturdy boots (steel-toed highly recommended), hard hats and high visibility/safety vests are required for this field trip. Safety eyewear required when breaking rocks.
LODGING: Day trip, should not be needed.
OTHER NOTES: The pit may be operational that day so please arrive no more than 15 minutes early, if possible. Park on the side of the road at the gate and wait for directions. Bring plenty of water for hydration. A wagon or dolly is very useful. Additional suggested items to bring: sunblock and snacks. Walmart has steel-toed boots at a reasonable price.