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Aspen Center for Environmental Studies

100 Puppy Smith St, Aspen, CO 81611-1451
+1 970-925-5756
Review Highlights
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 4 weeks ago
Susan T
via mobile
A Wonderful Tour of this Beautiful Natural Preserve in the Middle of Aspen

Our family of 18 took a private tour with two terrific ACES guides for a couple of hours and... read more

Reviewed 16 June 2017
San Antonio, Texas
Read all 63 reviews
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Sponsored by:
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!
  • Excellent78%
  • Very good22%
  • Average0%
  • Poor0%
  • Terrible0%
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Hours Today: 09:00 - 17:00
100 Puppy Smith St, Aspen, CO 81611-1451
+1 970-925-5756
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Reviews (63)
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1 - 10 of 60 reviews

Reviewed 4 weeks ago 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 28 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 14 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 10 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
Reviewed 31 March 2016 via mobile

My wife and I took a break from skiing to take the ACES snowshoe tour on top of Aspen mountain and it was totally worth it! Experiencing the silence of the snow-clad trees amid the deep drifts of snow was surreal! Our guide (Lauren) was...More

Thank robbgb1
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