Location:
Hallam Lake
100 Puppy Smith St.
Aspen, CO 81611
Email:
Phone:
970.925.5756
Hallam Lake
ACES at Hallam Lake, a 25-acre nature preserve and environmental learning center, was the first location of the Aspen Center for Environmental Studies. The Hallam Lake property was donated in 1968 by Elizabeth Paepcke. The preserve is open to the public year-round and provides an inspiring setting for ACES’ many educational and naturalist programs. Borrow our binoculars and search for local wildlife. Keep your eyes out for freely roaming mule deer, elk, foxes, coyotes, bear, beavers, golden eagles, hawks, songbirds, and more!
Directions: We are located at the end of Puppy Smith Street behind the Aspen Post Office. You will reach a set of stone gates. The parking lot is on the left, and then you can walk down through the gates on the trail to the Hallam Lake Nature Center, which will be at the end of the trail on the left. Please call 970-925-5756 if you are lost!
Birds of Hallam Lake - June
© Suzanne Labbé | Macaulay Library | eBird
Yellow-rumped Warbler
© Jonathan Irons | Macaulay Library | eBird
Pine Siskin
Northern Yellow Warbler
© Kyle Tansley | Macaulay Library | eBird
American Robin
© Alva Steury | Macaulay Library | eBird
Northern House Wren
© Iris Kilpatrick | Macaulay Library | eBird
Ruby-crowned Kinglet
© Joshua Covill | Macaulay Library | eBird
Violet-green Swallow
© Evan Lipton | Macaulay Library | eBird
Black-capped Chickadee
© Fernando Ortega | Macaulay Library | eBird
Broad-tailed Hummingbird
Western Warbling Vireo
© Liam Singh | Macaulay Library | eBird
Western Flycatcher
© Suzanne Labbé | Macaulay Library | eBird
Song Sparrow
© Bryan Calk | Macaulay Library | eBird
Black-billed Magpie
© Dorian Anderson | Macaulay Library | eBird
Tree Swallow
© Brad Imhoff | Macaulay Library | eBird
Northern Flicker
© Matt Felperin | Macaulay Library | eBird
Red-winged Blackbird
© Ian Routley | Macaulay Library | eBird
Lewis's Woodpecker
© Brian Sullivan | Macaulay Library | eBird
Turkey Vulture
© Don Danko | Macaulay Library | eBird
Osprey
© Linda Chittum | Macaulay Library | eBird
Great Blue Heron
Things to do at Hallam Lake
Explore the Nature Preserve
A half-mile loop nature trail is available for all visitors, and meanders in and out of wetlands and includes stops at various observation decks. Use our self-guided tour book to learn about our local landscape, or adventure on your own, experiencing aspen forest, wetlands, and meadows. An on-site Naturalist is always available to answer any questions you may have. Summertime offers a bounty of wildflowers, while winter is an excellent time to learn animal tracks!
Activities at Hallam Lake
Posts From Hallam Lake
Working together we can make a difference.
Protect our world for the future. A donation to ACES allows us to forge bold innovation in environmental science education, ecological literacy, forest health, restoration of our lands, and sustainable agriculture. We hope you will make an investment in nature today and join a community of environmental stewards!
Other Locations
Wednesday-Friday 9am-4pm
Rock Bottom Ranch
Wednesday - Sunday , 12pm - 5pm