Ron Krajian Bridge
Ron Krajian Bridge: A Piece of History in Aspen
Hallam Lake: Aspen's Nature Sanctuary
Discover Aspen's natural side at Hallam Lake: a wildlife haven and environmental learning center for all ages, steps from downtown.
Hallam Lake, a 25-acre nature preserve in the heart of Aspen, offers a tranquil escape with diverse wildlife and educational programs. It's home to the Aspen Center for Environmental Studies (ACES) and features a half-mile loop trail through varied habitats.
Plan your visit
A brief summary to Hallam Lake
Opening times, essentials, and a few local tips gathered into one calmer, easier-to-scan planning section.
Plan your visit
Other nearby places you may find interesting
Explore places near Hallam Lake
Getting There
Walking
Hallam Lake is located a short walk from downtown Aspen. From Main Street, walk north on Mill Street, then turn left onto Puppy Smith Street. Continue past the post office; the road dead-ends at the Aspen Center for Environmental Studies. Follow the driveway to the parking area on the left. The entrance to Hallam Lake is through the stone gates.
Public Transport
Aspen has a free public bus system. Take any bus that stops near downtown Aspen (Rubey Park) and follow the walking directions above. There is no cost for the bus.
Taxi/Ride-share
Taxis and ride-sharing services are available in Aspen. A ride from Rubey Park (the main bus station) to Hallam Lake will cost approximately $15-$20. Note that prices may vary depending on demand and time of day.
Local tips
✓
Borrow binoculars from ACES to enhance your wildlife viewing experience.
✓
Visit during the summer for the best wildflower displays.
✓
Check the ACES website for upcoming events, including bird of prey demonstrations and guided walks.
✓
In winter, look for animal tracks along the nature trail.
✓
Consider walking, biking, or taking the bus, as parking is limited.
Discover more about Hallam Lake
Hallam Lake, a serene 25-acre nature preserve and environmental learning center, is located just steps from downtown Aspen. As the original site of the Aspen Center for Environmental Studies (ACES), Hallam Lake has been providing immersive programming for all ages since 1968. The property was donated by Elizabeth Paepcke in 1968.
Visitors can explore a half-mile loop nature trail that meanders through wetlands and aspen forests, with observation decks offering views of local wildlife. The preserve is home to a variety of animals, including mule deer, elk, foxes, coyotes, and beavers, as well as golden eagles, hawks, and songbirds. In addition to its natural beauty, Hallam Lake has a rich history, once serving as a cultural center with an ice-production facility, dance hall, and toboggan run.
Today, Hallam Lake continues to offer environmental education and naturalist programs year-round. Summertime brings wildflowers, while winter is ideal for tracking animals. The site also features an indoor trout stream with native cutthroat trout. ACES also rehabilitates birds of prey, so visitors can sometimes see great horned owls and golden eagles.
A brief summary to Hallam Lake
Use Tower Bridge as your starting point for nearby food, family ideas, nightlife, and more local discoveries.
Get the app
Your all‑in‑one travel companion app
Explore expert travel guides, compare and book tours, experiences, hotels, and more—all from the palm of your hand. Download now for seamless trip planning wherever your wanderlust takes you.
More about Aspen
Discover Aspen, Colorado: A year-round destination offering world-class skiing, vibrant arts, historic charm, and stunning natural beauty in the heart of the Rocky Mountains.
Tell me more about Aspen