Aspen and Arapahoe Peak. Photo by Steve Jones. To learn more about aspen groves in the fall, listen to the KGNU story, An aspen grove in October.

For more information see the latest BCNA Buzznewsletter, or join us on Facebook!

The Boulder County Nature Association is a private, non-profit membership organization committed to preserving the natural history of our region through research, documentation and public education.

We conduct and support natural area studies, flora and fauna studies, historical research, wildlife inventories, and geological research.

We also disseminate natural and cultural history information to the public through nature hikes, classes, slide programs, publications, seminars, support for interpretive facilities in Boulder County, and an annual symposium on the status of Boulder County ecosystems.

We work with the Boulder County community to manage our local ecosystems so that they are sustainable and healthy.

Upcoming Events

Sunday, November 9: BCNA board meeting

3-5 pm at the OSMP offices on Cherryvale Road. All are welcome to attend.

Sunday, December 14th: 73rd Boulder Audubon Christmas Bird Count

Beginners are welcome to join teams on the CBC, following the leaders around and contributing their spotting skills, if not their identification skills. More experienced folks are urged to join and lead a small crew to cover an area within the circle. Anything can happen (both weather and wildlife) and it usually does. If you prefer, you can also stay at home and count at your feeder, while sipping mulled wine and munching toasties. Following a day in the field (for most of us), we celebrate together with a warm and jolly compilation supper --- some provided and some pot-lucked. If you participated in 2013, you will be contacted by your circle leader with details. If this is your first count contact Bill Schmoker (, the count organizer, and he will direct you to a group you can join. Check out why this count is not only fun but important for conservation:

Saturday, December 20th, before dawn, Winter Solstice Celebration Hike

One of Audubon’s most cherished chapter traditions is the annual Solstice Hike with Boulder County Nature Association. We gather at the White Rocks trailhead (on south side of Valmont east of 75th St.), and after greeting and meeting with many puffs of frosty air, we walk down to the creek crossing to view the sunrise, admire whatever winter is bringing our way, and share readings, poetry and a song or two. Warm up afterwards with breakfast in Niwot. Let Steve know if you are coming in order to advise the restaurant. Steve Jones, 303-494-2468.

For more events, please see the listing in the Newsletter.


Monthly Nature Almanac

KGNU features a short program with Steve Jones and Ruth Carol Cushman on the first Friday of every month. For each program, they visit a Boulder County nature site to record sounds there and discuss topics of interest. They are also the authors of Wild Boulder County: A Seasonal Guide to the Natural World.

The programs are archived by month, with information about events happening in the natural world in Boulder County for that month.

October audio: An aspen grove in October

October Seasonal Events in Boulder County

Just in time for fall bug hunters!

You can now learn about dragonflies of the Colorado Front Range from this beautiful and colorful new 112-page publication of the Boulder County Nature Association. Check the BCNA BUZZ to see how and where you can purchase your own copy of Dragonflies of the Colorado Front Range by Ann Cooper.

Dragonfly Cover


Nature-Net is BCNA's email forum for announcements of classes and trips and discussions of many topics relating to Boulder County's natural environment. Nature-Net subscription information.