Distance
Up to 4 Miles
Elevation Gain
500 Feet
Difficulty
Moderately Easy
Cost Per Person
$175
Program Overview
September 13, 2026: Glacier National Park is a geological marvel where opposing forces of nature have shaped the landscape over billions of years. This course will take place within the Two Medicine Valley, surrounded by glacially carved mountains and lakes with glimpses of the iconic Lewis overthrust fault. During our hike we will experience Glacier on the geological timescale, where discussions will focus on the sedimentation, uplifting, and carving that shaped this incredible landscape. The class is designed for those with an interest in the scientific story behind the majestic scenery.
Geology Two Medicine Valley
Hike Overview Continued
Instructor: Heather Upin
Glacier National Park is a geological marvel where opposing forces of nature have shaped the landscape over billions of years. This course will take place within the Two Medicine Valley, surrounded by glacially carved mountains and lakes with glimpses of the iconic Lewis overthrust fault. During our hike we will experience Glacier on the geological timescale, where discussions will focus on the sedimentation, uplifting, and carving that shaped this incredible landscape. The class is designed for those with an interest in the scientific story behind the majestic scenery.
Other topics will be discussed, such as the Park’s wildlife and plants, and the management of these resources by the National Park Service, as these subjects are all related directly or indirectly to the park’s geology. Participants will also observe how present geologic forces continue to shape the landscape of Glacier National Park.
Meeting Place: Glacier Institute Field Camp
Itinerary: (subject to change due to trail closures and weather) At 7 a.m. we will gather at Field Camp for introductions and an overview of the geology of Glacier National Park before our departure for Two Medicine. Several pull-outs along our drive provide key geologic perspectives as well as photo opportunities. In Two Medicine we will hit the trail and halfway through, we will eat lunch on the trail. Returning by the same route, the course will end by 3 p.m. and will not be canceled due to weather.
Food: Please bring a trail lunch, plenty of water and snacks for the day.
Equipment: You will receive a Field Camp gear list once you register. Most importantly are comfortable hiking shoes, at least 1-2 liter water bottle, backpack, rain gear, hat, and sunscreen. Weather can be varied, especially at the high elevations, so please be prepared with appropriate clothing, especially warm layers.
Physical Requirements: We will hike at a moderate pace to discuss the landscape. The hike will be up to 4 miles with 500 feet in elevation changes.
Recommended Reading:
- Glacier: The Story Behind the Scenery by Kathy Ahlenslager
- Glacier National Park: A Natural History Guide by David Rockwell
- Roadside Geology of Montana by David D. Alt and Donald W. Hyndman
What to Expect On Your Geology of Two Medicine Valley
Spend the day examining and hiking the Two Medicine Valley. Sinopah Mountain, meaning “kit fox” in Blackfeet, looms above the South Shore trailhead of Two Medicine Lake, a sedimentary monument of awe. Hikers will encounter montane forest of lodgepole pine and Douglas fir throughout the meadows and marshy areas of this beautiful valley. Hiking through these stunning aspen parklands involves glacially carved lakes and towering mountains, waterfalls, and bubbling creeks.
* Any trails listed on this program or others are subject to change due to trail closure, weather, trail conditions, or wildlife.
Program Details
- This Glacier Institute program meets at Field Camp, West Glacier.
- The program will begin 7:00 a.m. and ends at 5:00 p.m. Please arrive 15 minutes early.
- Hiking distance covers up to 4 miles with around 500 feet elevation change.
- On-site parking available.
- There is a maximum number of 13 hikers per trip.
- This program has a minimum guest count of 3 people. In the unlikely case we don’t reach that number, you will be notified prior to the event.
What to Bring
Please remember that weather in NW Montana during all seasons can change quickly from warm and sunny to freezing at any time of the year. We recommend checking the weather prior to your trip. Please also check your course information sheet for specific gear requirements in addition to those listed below.
- Lightweight hiking boots or a sturdy pair of hiking shoes
- 2 liter sized water bottle or Camelback
- Day Pack with plastic bag liner or cover
- Waterproof rain jacket and pants
- Sunhat, sunglasses, sunscreen, insect repellant & lip balm
- Camera (optional)
- Trekking poles, if you like to use them for hiking (optional)
- Binoculars (optional)