What we're about

CHAOS is an informal, Boulder-based group of energetic, fun, non-competitive, backcountry enthusiasts who are in their 20s, 30s, or 40s who enjoy self-powered and self-organized activities including hiking, backpacking, biking, snow shoeing, skiing, mountaineering, and river sports.

CHAOS' main Goal is to be a community through which one can make life-long friendships, share backcountry trips, expand outdoor and leadership skills, appreciate nature and enjoy the sense of community, teamwork, and challenge that prospers in backcountry situations.

As a member you will be able to check activities on this website, and post your own trips/events. Note that all trips should be for CHAOS by CHAOS, outdoors, and self powered.

CHAOS actively encourages its members to organize trips but does not supervise the activities. CHAOS is not a guide service and a person should only go on trips they feel are appropriate for their ability and experience level.

If you have questions, ask the trip organizer! Many trip organizers love to help out new members and will gladly answer any questions you have about the trip, what equipment to bring, etc. Above all else, have fun and be safe!

Here is a Welcome To Chaos document with more information: https://docs.google.com/document/d/1aLFTysl452wTZcaSYt3KP4brsqsqL867Cos1xZ2gavg/edit?hl=en_US

Many past and present members believe that CHAOS enormously improved their "young adulthood and pre-family" phase of life. To ensure that this wonderful opportunity remains for future members, they should be in their 20's, 30's or 40's when they join CHAOS.

If the members’ ages or the group’s style don’t feel like a good fit for you, we suggest you check out one of the other great clubs in Boulder like the Flatirons Ski Club, the Boulder Outdoor Group, the Colorado Mountain Club, the Boulder Nordic Ski Club, the Sierra Club, or the C.U. Hiking Club (office in UMC).

Please be respectful when you RSVP to events, and only RSVP if you know you will make the event; especially if there is a limited number of spots available. If you end up with three no-shows; whether it's a no call/no show, or a cancel at the last minute; you will be removed from the group.

Upcoming events (5+)

Green Mountain via Ranger/Saddle/Gregory Cyn Tr *SUNSET HIKE*

Let's do a sunset hike of Green Mountain! Starting at the Gregory Canyon trailhead, we will hike all the way to the top of Green Mountain, then we will eventually end up on the Gregory Canyon Trail on the way back. The total distance is 5 miles and the elevation gain is 2300'. Bring water, a HEADLAMP and SPIKES! Bad weather i.e. pouring rain or snowstorm cancels.

Vegan CHAOS Potluck ~ Share your Outdoor Tales over a cozy dinner!

A chaos tradition has been to have a monthly potluck, so I thought I'd start it up again to celebrate my Birthday Month! The CHAOS potluck is a great opportunity to meet new friends, hear about upcoming trips and plan new ones. ~ Please BYO plate, cup and fork to be good for the environment. ~ Consider coming by bike or bus. The Skip and 204 stop 1 min walk away! ~ Bring a main course, desert, or drink to share with 4-8 people. (Reminder that vegan means 'no animal products,' so no meat, milk, fish, eggs, honey, or other pesky ingredients, like 'whey.') I have not led a Chaos Adventure since before I went to New Zealand! But I'm looking forward to re-connecting over dinner and planning some soon! Looking forward to seeing you, snow or shine!

Sky Pond (RMNP)

3 Margaritas Boulder

Approximately 8 miles and 1800 feet of elevation gain for some of RMNP's most spectacular scenery. This may be a snowshoe trip depending on the conditions. Start Elevation: 9240’ End Elevation: 10800’ Skill Level: Strenuous https://www.alltrails.com/explore/trail/us/colorado/sky-pond-via-glacier-gorge-trail Carpool location: Three Margaritas [masked]th St, Boulder), Coordinates: 40°02'09.4"N 105°15'27.3"W Trailhead location: Bear Lake, Coordinates: 40°18'42.9"N 105°38'43.3"W This hike is for the fit and acclimated. You will need a RMNP pass to enter the park, or the cost is $25 per car. There are a number of us with passes, but you may be in a car that has to pay the fee, so be prepared and either way, you should offer you driver money for gas as well as something towards the cost of the pass or entrance fee. No dogs are allowed on RMNP trails. Meet at 6:55am at Three Margaritas Parking lot to organize carpool. We leave at 7:00am promptly. If you are driving to trailhead by yourself, meet us at 8:20am at Bear Lake trailhead. We will start hiking promptly at 8:30am so don't be late. Note if there is parking space available in Glacier Gorge TH, we’ll park there. Make sure to bring water, snacks, warm layers and microspikes (maybe Snowshoes). Bad weather postpones/cancels. Disclaimer: By attending this hike, you assume all responsibility for your own safety. Mountaineering in Colorado can be very dangerous. Altitude sickness, dehydration, and fast-building storms are the most common problems. Please be in shape and self-sufficient.

First Flatiron (Sunset Hike)

Ranger Cottage

Approximately 2.5 miles and 1400 feet of elevation starting at Chautauqua park. Start Elevation: 5690’ End Elevation: 7170’ Skill Level: Strenuous https://www.alltrails.com/explore/trail/us/colorado/first-and-second-flatiron-hike Trailhead location: Ranger Cottage at Chautauqua Park, Coordinates:[masked], [masked] Meet at 5:55pm in front of Ranger Cottage. We leave at 6:00pm promptly. Make sure to bring headlamp, water, snacks, microspikes and warm layers. Bad weather postpones/cancels. Disclaimer: By attending this hike, you assume all responsibility for your own safety. Mountaineering in Colorado can be very dangerous. Altitude sickness, dehydration, and fast-building storms are the most common problems. Please be in shape and self-sufficient.

Past events (1,012)

Mt Sanitas (Super Worm Moon and Spring Equinox)

Mount Sanitas Trailhead

Photos (8,212)