Welcome to the Kalamazoo Geological & Mineral Society (KGMS)
The 2026 KGMS Rock & Gem Show is May 1-3, 2026, 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.
June 21-22, 2025 Field Trip:
Day 1: Geode Hunt Locations
Day 2: Fossil Hunt Location
Hosted By: Brown County Rock and Mineral Club
Please email lindabergeon@yahoo.com to let Linda know if you plan to attend
June 21, 2025 TIME: 9am-TBD
LOCATION: We will be geode hunting south of Bloomington near Monroe Lake. This area is on Eastern standard time. There will be 2 locations about 20 min apart. Both locations will be in creeks. The creeks are state property but remember the land leading up to the creek can be private property.
*Stop 1-- 9am to Noon'. One location will have smaller geodes and fossil geodes that are very unique to this area.
**BREAK at a gas station between the 2 locations for restroom, food and beverages**
*Stop 2--1pm to TBD The other will be medium sized geodes which could contain crystals.
COST: Free
WHAT YOU WILL FIND: Geodes
WHAT YOU WILL NEED: There will be no need for digging tools as they are exposed. Maybe a tool to pry them would be handy (think prybar, screw driver or trowel). No safety equipment will be required. Bring buckets, there are no limits. YAY! You can bring a wagon or dolly to transport the buckets but know they could be difficult to maneuver through the woods or down the river bank.
I am bringing a wagon for myself and leaving it at the edge of the upper bank. When the time gets closer, I will instruct where our meeting place will be to car caravan to our location.
DRESS CODE: None, Water proof boots, waders, or water shoes as the creek could be slippery are suggested
June 22--9am to 1pm
LOCATION: We will be at a famous road cut near St. Leon for fossil hunting.
WHAT YOU WILL FIND: This will be for Ordovician fossils. Again, there is no limit. You will be looking for trilobites, brachiopods, crinoids, bivalves, sponge, bryozoan, coral, gastropods and hash plates.
WHAT YOU WILL NEED: Once again, no digging, surface hunting only. A flat head screwdriver works great to release them from the dirt. We will be limiting how many cars can park at the roads edge so once again, when I know the headcount, I will work out a place to meet for carpooling if needed. All will be expected to leave at this time.
LODGING: There are 3 cities you could choose to stay: Bloomington, Columbus (IN) and Greensburg. Bloomington is closest for the 1st day's hunt. Greensburg is closest to the 2nd day's hunt and Columbus is in between.
From Bloomington to Columbus is 53 miles and Columbus to St. Leon is 62 miles. Bloomington to Greensburg is 67 miles. It is 31 miles from Greensburg to St. Leon.
Since it will be a personal choice as to how far you want to drive on any given day, we could all wind up a distance apart so dinner will not be scheduled for Sat. Night. After our 2nd day of fossil hunting, if you like, we can gather for lunch after our hunt if enough people decide they would like to, before going home. The club will help defray the cost of the lunch on Sunday
OTHER NOTES: 20 car maximum so carpooling will be required to keep car count down and allow maximum participation for those interested. A car pool meeting site will be determined. REMEMBER--artifacts are off limits. You must leave them where you found them. But, you can take pictures! I have been told you will find all the geodes and fossils you will want. The Indiana club requests no geodes be cracked open on site, please take them to your vehicle whole. The state of Indiana requests the geodes be used for personal use, not for resale.
July 19-20, 2025 (Friday-Sunday) Time: TBD Lake Huron, Rockport Quarry and Petoskey, MI
July 19, 2025 (Saturday), Rockport Quarry, Alpena, MI (morning) and Lake Huron (afternoon)
Hosted by: Kalamazoo Geological & Mineral Society
Please email lindabergeon@yahoo.com to let Linda know if you plan to attend
LOCATION:
Cost: Free
WHAT WILL YOU FIND: Fossils, Petoskey Stones, Gowganda Tillite, Puddingstone, Jasper
DRESS CODE: None
LODGING: TBD
OTHER NOTES: No attendance limit
July 20, 2025 (Sunday), Petoskey/Charlevoix Roadside Park
Hosted by: Kalamazoo Geological & Mineral Society
Please email lindabergeon@yahoo.com to let Linda know if you plan to attend
LOCATION: To Be Announced in Alpena (Linda's favorite spot)
Cost: Free
WHAT WILL YOU FIND: Horn Coral, Petoskey Stones, Charlevoix stone
DRESS CODE: high visibility vests are required for this field trip. Water shoes recommended.
LODGING: TBD
OTHER NOTES: Great family trip. No attendance limit
August Field Trips
Annual August KGMS Trip to Michigan's Upper Peninsula (Subject to show cancellations)
Our trip to Michigan's Upper Peninsula is centered on shows and field trips hosted by local clubs. We understand that everyone has a different schedule. Please feel free to come and leave as you like.
Dates: August 1, 2025 (Friday) to August 3. 2025 (Sunday)
Host: Ishpeming Rock & Mineral Club
Locations: Ishpeming, MI (Iron Country)
Lodging: There are a lot of choices and you may stay where you wish. Most of our members stay at the Country Village Resort which includes multiple accommodation levels: tent, RV, cabin and hotel
Details: The Ishpeming club' s schedule typically consists of:
Friday morning, August 1, 2025 - a field trip to the Republic Mine for specular hematite and banded iron formation. $10 per person. NO YOUNG CHILDREN.
Saturday, August 2, 2025- Rock Show at Ishpeming Elks Club, 597 Lakeshore Drive, Ishpeming, MI.
9:30 am - 4:30 pm, Free Admission and door prizes
Sunday, August 3, 2025 - a field trip to the Lindbergh quarry for Kona dolomite $10 per person to attend. Sign up sheet will be available at the show. NO YOUNG CHILDREN.
Note: on Thursday, July 31st, we will get together for a 6:30 PM kick-off dinner at Jerzi's 41 which is located at 9965 US Highway 41, Champion, MI.
Date: September 27, 2025(Saturday) TIME: 9AM - 2PM, 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, Limestone
DRESS CODE: Long pants, sturdy boots, hard hats and high visibility vests are required for this field trip.
LODGING: Day trip, should not be needed.
OTHER NOTES: Park on the side of the road outside the gate and wait for directions.
October 4, 2025 (Saturday) TIME: 12 NOON - 4 PM, Byholt Quarry, Schoolcraft, MI (Tentative Date)
Hosted by: Kalamazoo Geological & Mineral Society
Please email lindabergeon@yahoo.com to let Linda know if you plan to attend
LOCATION: Byholt Quarry, 11360 4th Street, Schoolcraft, MI 49087
COST: $5 for individuals, $7 for families (Family defined as 2 or more persons from same household/residence)
WHAT WILL YOU FIND: Petoskey Stone, Septaria, Pudding Stone, Gowganda Tillite, glacial rocks
DRESS CODE: Long pants, sturdy boots, hard hats and high visibility vests are required for this field trip.
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.