We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.

Aspen Center for Environmental Studies

100 Puppy Smith St, Aspen, CO 81611-1451
+1 970-925-5756
Review Highlights
Urban preserve

Very nice small preserve in town. Short walk very easy. Many places to sit and contemplate. We... read more

Reviewed 2 weeks ago
marvin b
New Paltz, New York
Highly recommend the crater lake naturalist guided tour

The guide we had kept us motivated and engaged the whole way up to crater lake. She was... read more

Reviewed 28 June 2017
Susan T
via mobile
Read all 64 reviews
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
The Hallam Lake Nature Preserve, a wild place in the heart of Aspen, features an Environmental Learning Center, resident birds of prey, an indoor trout stream, a nature trail loop, bird watching, a naturalist on site, and programs all year round. Free to visit!
  • Excellent77%
  • Very good23%
  • Average0%
  • Poor0%
  • Terrible0%
Travellers talk about
Open Now
All hours
Hours Today: 09:00 - 17:00
100 Puppy Smith St, Aspen, CO 81611-1451
+1 970-925-5756
Write a Review
Turn Your Opinions into Points!
Turn your opinions into JPMiles
Turn your opinions into PAYBACK Points
*You can enroll in only one programme at a time to earn rewards for reviews.
JPMiles / Payback Arrow
JPMiles / Payback Arrow
Reviews (64)
Traveller rating
Traveller type
Time of year

1 - 10 of 61 reviews

Reviewed 2 weeks ago

Very nice small preserve in town. Short walk very easy. Many places to sit and contemplate. We enjoyed the peace and quite. Very helpful nature guidebook.

Thank marvin b
Reviewed 28 June 2017 via mobile

The guide we had kept us motivated and engaged the whole way up to crater lake. She was knowledgeable about history, vegetation, geology, and environmental issues. I cannot believer this is a free service, but we will be donating to the AES to support that...More

1  Thank Susan T
Reviewed 16 June 2017

Our family of 18 took a private tour with two terrific ACES guides for a couple of hours and learned so much in that short time about the local wildlife, flowers and trees. We met the three resident wild Raptors (Great Horned Owl, Red-Tailed Hawk...More

Thank boudin
Reviewed 11 April 2017

Attended the Christmas Open House and had a great time. Loved everything about ACES. Bonfire, Aspen Brewery craft brews,tasty appetizers and beautiful setting. Highly recommend!! Love the resident raptors!!!

Thank Snoil54
Reviewed 29 March 2017

What a treat! In Aspen, see live birds of prey, and take a nature walk along trails near beautiful dams. Abundant waterfowl. In Basalt, visit a working farm with many animals and vegetable greenhouses. Great activity books for children. Highly recommended. Very friendly and engaging...More

Thank DRS69
Reviewed 15 March 2017 via mobile

We booked a snow shoe tour with ACES and did the Ashcroft Snow Shoe tour. This was my first time to Aspen or Colorado. We enjoyed our Snow shoeing and it was a lot of fun!!! Going to Pinecreek Cookhouse was also a neat experience...More

Thank Patty M
Reviewed 26 September 2016

Wonderful field classes and interesting indoor talks for adults and children - peaceful spot at the edge of town - has evolved with Aspen over the years and getting better all the time!

Thank Snowwillow
Reviewed 28 July 2016 via mobile

I have been coming to aspen many years and aces is always a family favorite. The preserve is amazing with short and easy trails to take in the serenity. Plan to spend 30min to 1hr here.

1  Thank bayardyoung
Reviewed 11 June 2016

Super kid friendly. The staff was totally accommodating to toddlers. The self paced tour was awesome. Allowed the kids to learn at their own pace.

Thank Jai D
Reviewed 8 April 2016

While my family enjoyed some great spring skiing, I ventured out on snowshoe with a guide from ACES. We lucked out with the weather, having a warm and sunny adventure that led us to the top of Aspen mountain to discover the beauty and majesty...More

Thank Judith L
Nearby Restaurants
The White House Tavern
1,051 reviews
.74 km away
The J-Bar at the Hotel Jerome
480 reviews
.69 km away
438 reviews
.68 km away
Pyramid Bistro
235 reviews
.67 km away
Nearby Attractions
Maroon Bells
1,953 reviews
.54 km away
The John Denver Sanctuary
489 reviews
.70 km away
Rio Grande Trail
249 reviews
.59 km away
Aspen Brewing Company
134 reviews
.75 km away
Questions & Answers
Get quick answers from Aspen Center for Environmental Studies staff and past visitors.
Note: your question will be posted publicly on the Questions & Answers page.
Posting guidelines

Recently Reviewed Hotels around Aspen