Search | ACES

Blog
Sign in
Sign up

Blog
Sign in
Sign up

Programs & Events
Activities

Speakers

Events

Adults

Kids

Families
Hire a Guide

Birding

Wild Perspectives

Potbelly Perspectives
Happening Soon

120th Annual Audubon Christmas Bird Count
Dec. 15th, 7:30am to 3:00pm

Family Bird of Prey Après
Dec. 26th, 3:00pm to 5:00pm Hallam Lake

Holiday Après Hours at Catto Center at Toklat

Every day from Dec. 21 - Jan. 4, 12pm-5pm
Catto Center at Toklat

View All Programs & Activities
Our Work

Educating for Environmental Responsibility:

Forest Programs

Naturalist Programs

ACES Ed

Regenerative Ag

Naturalist Field School
Research & Resources
Jessica Catto Dialogues

Citizen Science

Get Involved

Wildlife Videos

Naturalist Nights
Learn more about your home:

Osprey Camera

Forest Health Index

Roaring Fork River Gauge

Birding
About
Our Story

Reports and Financials

Partners

Staff

Work at ACES

Board of Trustees
Visit our locations:

Rock Bottom Ranch

Hallam Lake

Catto Center at Toklat
Support
Donate

Membership

Donor Circles

Volunteer

Get Involved

Corporate Sponsors
Be a bold visionary for the environment:

Renew Your Membership

ACES Bird Club

Gift & Tribute Memberships

Campaign Updates

Search form

Search

Donate Now

Home Programs & Events Hiking Search

type:

Outdoor Experiences Apply Outdoor Experiences filter

topic:

Birding Apply Birding filter
Hiking Remove Hiking filter
HL Kids Winter Apply HL Kids Winter filter
Naturalist Nights Apply Naturalist Nights filter
Science Apply Science filter
Snowshoe and Ski Tours Apply Snowshoe and Ski Tours filter
Wildlife Apply Wildlife filter

location:

Aspen Area Remove Aspen Area filter

age:

Adults Apply Adults filter
Families Apply Families filter

availability:

Available Apply Available filter

Search:

Dates

Date

E.g., Dec 13, 2019

—

Date

E.g., Dec 13, 2019

View

View

Per page:

Hire a Guide

Available daily by reservation, Dec. 16 - April 17

Rock Bottom Ranch

Fri 9am-5pm

Tel: 970.927.6760

2001 Hooks Spur Road
Basalt, CO 81621

Hallam Lake

Mon - Fri 9am-5pm

Sat 9am-5pm

Tel: 970.925.5756

100 Puppy Smith Street
Aspen, CO 81611

Catto Center at Toklat

Call for hours of operation

Tel: 970.925.9157

11247 Castle Creek Road
Aspen, CO 81611

Privacy Policy | Terms and Conditions | Careers | Charity Navigator

©2019 Aspen Center for Environmental Studies