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    Tuesday Birding at Hallam Lake

    Every other Tuesday, varying times 

    North Star Birding: Early Migration

    Aug. 17th, 7:30am to 10:30am North Star

    Tuesday Birding at Rock Bottom Ranch

    Every other Tuesday, varying times 

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ACES Educator-in-Training Volunteer

ACES Educator-in-Training Volunteer

Aug. 10th, 9:00am to Oct. 9th, 4:00pm

Are you a high school student interested in the field of environmental education.

Snowmass Wildflower Walk

Snowmass Wildflower Walk

Aug. 10th, 10:00am to Oct. 27th, 12:00pm

Snowmass Wildflower Walk is offered daily at 10am from Saturday, June 18, 2022 - Sunday, September 4, 2022.

Maroon Bells Maroon Lake Walk

Maroon Bells Maroon Lake Walk

Aug. 10th, 10:15am to Oct. 28th, 2:00pm

Maroon Bells Maroon Lake Walk is offered daily at 10:15am and 1:15pm from Saturday, June 18, 2022 - Monday, September 5, 2022.

Maroon Bells Crater Lake Hike

Maroon Bells Crater Lake Hike

Aug. 10th, 10:15am to Oct. 28th, 3:15pm

Maroon Bells Crater Lake Hike offered daily at 10:15am and 1:15pm from Saturday, June 18, 2022 - Monday, September 5, 2022.

Green World Day Hike

Green World Day Hike

Aug. 10th, 10:30am to Nov. 30th, 2:30pm

Offered from mid-June through the end of September, by reservation only.

Aspen Mountain Walk

Aspen Mountain Walk

Aug. 10th, 11:00am to Oct. 28th, 4:00pm

Aspen Mountain Walk is offered daily on the hour from 11am - 3pm.

Snowmass Ice Age Discovery Hike

Snowmass Ice Age Discovery Hike

Aug. 10th, 1:00pm to Oct. 27th, 3:00pm

Snowmass Ice Age Discovery Hike is offered daily at 1pm from Saturday, June 18, 2022 - Sunday, September 4, 2022.

River Run Sunset Hike

River Run Sunset Hike

Aug. 10th, 5:00pm to Nov. 22nd, 8:00pm

The evening version of our Green World Day Hike, this Naturalist guided adventure will explore the majesty of the Castle Creek valley at sunset.

Stories Told by Trees Walk: Forest Recovery from the Lake Christine Fire

Stories Told by Trees Walk: Forest Recovery from the Lake Christine Fire

Aug. 15th, 9:00am to 1:00pm

The forest ecosystems affected by the 2018 Lake Christine Fire have many stories to tell.

ACES Summer Camp

ACES Summer Camp

Aug. 15th, 9:30am to 3:30pm

General registration is OPEN.

Know Your Trees | Tree Identification Walk

Know Your Trees | Tree Identification Walk

Aug. 15th, 4:00pm to 5:00pm

Advance registration is required.

Spoon Carving

Spoon Carving

Aug. 17th, 5:00pm to 8:00pm

A collaboration with the Art Base

Join artist

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Rock Bottom Ranch

Tuesdays - Fridays, 9am-4pm
Saturdays, 9am-1pm
Tel: 970.927.6760

2001 Hooks Spur Road
Basalt, CO 81621

Hallam Lake

Mon - Fri, 9am-5pm
Sat, 9am-5pm in summer
Tel: 970.925.5756

100 Puppy Smith Street
Aspen, CO 81611

Catto Center at Toklat

Closed for renovations until spring 2023
Tel: 970.925.9157

11245 Castle Creek Road
Aspen, CO 81611

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