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    Happening Soon

    Tuesday Birding at Rock Bottom Ranch

    Every other Tuesday, varying times 

    Pollination Ecology: Biology of a Partnership

    Jul. 13th, 9:00am to 4:00pm Hallam Lake

    North Star Birding: South Side of the River

    Jul. 18th, 7:30am to 11:30am North Star
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Birds of Prey Demonstration

Birds of Prey Demonstration

Jul. 6th, 4:00pm to Sep. 18th, 5:00pm

Registration opens June 10.

Sunset Beaver Walk

Sunset Beaver Walk

Jul. 7th, 7:30pm to Sep. 17th, 8:30pm

Advance registration is required.

ACES Summer Camp

ACES Summer Camp

Jul. 11th, 9:30am to 3:30pm

General registration is OPEN.

Pollination Ecology: Biology of a Partnership

Pollination Ecology: Biology of a Partnership

Jul. 13th, 9:00am to 4:00pm

The science of pollination biology is less than a century and a half old, and its popularity as a field of investigation has increased substantially only in the last fifty years.

High in the Alpine: Flowers, Birds, & Small Mammals of the Tundra

High in the Alpine: Flowers, Birds, & Small Mammals of the Tundra

Jul. 20th, 8:00am to 1:00pm

Partnership with the Forest Conservancy

Cushion plants, krummholz, horned larks, pikas… Come explore the alpine tundra on top of Independence Pass (12,095 ft) with the Forest Conservancy Master Naturalists Francine Liebel, Donna Chase, or Carol Kurt.

An Evening on the Lake

An Evening on the Lake

Jul. 21st, 6:00pm to 9:30pm

Walk on the Other Side Walks

Walk on the Other Side Walks

Jul. 27th, 9:00am to Sep. 8th, 1:00pm

Join ACES Director of Naturalist Programs, Jim Kravitz on this rare opportunity to discover the far side of the North Star Preserve, which is otherwise closed to the public.

ACES Annual Mushroom Fair

ACES Annual Mushroom Fair

Jul. 29th, 1:00pm to 4:00pm

Join visiting fungi expert Dr.

Stars Above Aspen

Stars Above Aspen

Aug. 4th, 6:00pm to 10:30pm

Aspen Center for Environmental Studies invites you to the top of Aspen Mountain for our annual Stars Above Aspen Astronomy Night on Thursday, August 4 from 6:00-10:30pm.

Spoon Carving

Spoon Carving

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

A collaboration with the Art Base

Join artist

Nature Journaling

Nature Journaling

Aug. 18th, 9:00am to 1:00pm

Explore this artistic, scientific, and reflective practice to enhance and integrate your connection with nature through journaling.

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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