Upcoming Boulder Group Events, Trips, and Courses
Fri, Nov 28, 2025
Resort Skiing/Snowboarding – Eldora Mountain Resort - Downhill Skiing
Resort Skiing/Snowboarding Trip
Early-season downhill skiing/snowboarding at Eldora
No Prerequisites
Sun, Nov 30, 2025
Hiking – Quandary Peak via East Ridge
Hiking Trip
Quandry peak - east ridge (standard)
No Prerequisites, Leader's Permission Required
Sun, Nov 30, 2025
Leader in Training (LIT) Trip – Mt Galbraith
Hiking Trip
This is the LIT hike for Nick Clough. This is a ~4.2 mile hike around
No Prerequisites
Tue, Dec 2, 2025
Hiking – Boulder Open Space
Hiking Trip
Hiker Happy Hour is a 2 - 4 mile hike somewhere in Boulder's numerous Open
No Prerequisites
Wed, Dec 3, 2025
Hiking – Rise & Grind, Walden and Sawhill Ponds, Boulder OSMP
Hiking Trip
Rise & Grind, Walden and Sawhill Ponds, Boulder OSMP
No Prerequisites
Fri, Dec 5, 2025
Hiking – Rise & Grind, Mount Sanitas via Lions Lair Loop, Boulder OSMP
Hiking Trip
Rise & Grind, Mount Sanitas via Lions Lair Loop, Boulder OSMP
No Prerequisites
Tue, Dec 9, 2025
Hiking – Boulder Open Space - Anemone Loop
Hiking Trip
Hiker Happy Hour is a 2 - 4 mile hike somewhere in Boulder's numerous Open
No Prerequisites
Wed, Dec 10, 2025
Rock Climb – Longmont Climbing Collective
Climbing Trip
Indoor climb at LCC
No Prerequisites
Wed, Dec 10, 2025
Hiking – Rise & Grind, Eagle, Sage, North Rim Loop, Boulder OSMP
Hiking Trip
Rise & Grind, Eagle, Sage, North Rim Loop, Boulder OSMP
No Prerequisites
Wed, Dec 10, 2025
RMOTHG Trip – RMNP - Glacier Gorge TH - The Loch, Serendipity Pond
Snowshoeing Trip
Starting at either the Glacier Gorge Trailhead or Bear Lake Trailhead in Rocky Mountain National
Prerequisites
Thu, Dec 11, 2025
CMC Community Gear Sale 12/11
Join us for our Community Winter Gear Sale from 5-7pm where you can sell your gently used winter sports equipment, purchase pre-loved gear from other outdoor enthusiasts, and get exclusive deals on new gear from Out and Back. Gear experts from Out and Back will evaluate and price your items on-site. $10 for just the Community Gear Sale with drinks and snacks or for $25 you can also enjoy the Backcountry Film Festival along with prize drawings from 7-9pm.
Fri, Dec 12, 2025
Hiking – Rise & Grind, First and Second Flatiron Loop, Boulder OSMP
Hiking Trip
Rise & Grind, First and Second Flatiron Loop, Boulder OSMP
No Prerequisites
Fri, Dec 12, 2025
CMC Community Gear Sale 12/12
Join us for our Community Winter Gear Sale from 5-7pm where you can sell your gently used winter sports equipment, purchase pre-loved gear from other outdoor enthusiasts, and exclusive deals on new gear from Out and Back. Gear experts from Out and Back will evaluate and price your items on-site. $10 for just the Community Gear Sale with drinks and snacks or for $25 you can also enjoy the Backcountry Film Festival along with prize drawings from 7-9pm.
Tue, Dec 16, 2025
Hiking – Boulder Open Space - Shanahan Loop
Hiking Trip
Hiker Happy Hour is a 2 - 4 mile hike somewhere in Boulder's numerous Open
No Prerequisites
Wed, Dec 17, 2025
Hiking – Rise & Grind, Wonderland Hill, Boulder OSMP
Hiking Trip
Rise & Grind, Wonderland Hill, Boulder OSMP
No Prerequisites
Fri, Dec 19, 2025
Basic Snowshoe – Left Hand Reservoir
Snowshoeing Trip
This is the first in a series of Ascending Hikes, Winter Edition this season: A
No Prerequisites
Fri, Dec 19, 2025
Hiking – Rise & Grind, Spruce Gulch, Roosevelt National Forest
Hiking Trip
Rise & Grind, Spruce Gulch, Roosevelt National Forest
No Prerequisites
Sun, Dec 21, 2025
Hiking – Mount Sherman - The South Slope Route
Hiking Trip
Winter solstice hike
No Prerequisites, Leader's Permission Required
Sun, Dec 21, 2025
Intermediate Snowshoe – Brainard Lake Rec Area - Winter Gateway
Snowshoeing Trip
This is the second in a series of Ascending Hikes, Winter Edition this season: A
No Prerequisites
Mon, Dec 22, 2025
Intermediate Snowshoe – Hessie TH to Lost Lake
Snowshoeing Trip
This is the third in a series of Ascending Hikes, Winter Edition this season: A
No Prerequisites
Sat, Dec 27, 2025
Intermediate Snowshoe – Sourdough Trail
Snowshoeing Trip
This is the fourth in a series of Ascending Hikes, Winter Edition this season. This
No Prerequisites
Mon, Dec 29, 2025
Advanced Snowshoe – RMNP - Fern Lake TH - Fern Lake
Snowshoeing Trip
A steady 9-mile out-and-back snowshoe from the Fern Lake winter parking lot climbs about 1,500
No Prerequisites
Fri, Jan 2, 2026
Hiking – Rise & Grind, Boulder OSMP
Hiking Trip
Rise & Grind, Boulder OSMP
No Prerequisites
Sat, Jan 3, 2026
Intermediate Snowshoe – Blue Lake TH - Sawmill Creek Trail
Snowshoeing Trip
This out-and-back snowshoe up Sawmill Creek in Roosevelt National Forest follows a gentle winter corridor
No Prerequisites
Sun, Jan 4, 2026
Intermediate Snowshoe – Ouzel Falls
Snowshoeing Trip
This is the fifth in a series of Ascending Hikes, Winter Edition this season. We'll
No Prerequisites
Tue, Jan 6, 2026
Intermediate Snowshoe – Leland Creek, Fool Creek, King Creek Loop
Snowshoeing Trip
We'll snowshoe a loop around the east side of the Fraser Experimental Forest sampling the
No Prerequisites
Wed, Jan 7, 2026
Advanced Snowshoe – State Forest State Park - Michigan Lakes
Snowshoeing Trip
This is a snowshoe hike to Michigan Lakes in the State Forest State Park. Michigan
No Prerequisites
Wed, Jan 7, 2026
Hiking – Rise & Grind, Boulder OSMP
Hiking Trip
Rise & Grind, Boulder OSMP
No Prerequisites
Fri, Jan 9, 2026
Hiking – Rise & Grind, Boulder OSMP
Hiking Trip
Rise & Grind, Boulder OSMP
No Prerequisites