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    Happening Soon

    Tuesday Birding at Hallam Lake

    Every other Tuesday, varying times 

    Tuesday Birding at Rock Bottom Ranch

    Every other Tuesday, varying times 

    Rock Bottom Ranch

    Pollination Ecology: Biology of a Partnership

    Jul. 13th, 9:00am to 4:00pm Hallam Lake
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Green World Day Hike

Green World Day Hike

Jul. 1st, 10:30am to Oct. 21st, 2:30pm

Offered from mid-June through the end of September, by reservation only.

River Run Sunset Hike

River Run Sunset Hike

Jul. 1st, 5:00pm to Oct. 13th, 8:00pm

The evening version of our Green World Day Hike, this Naturalist guided adventure will explore the majesty of the Castle Creek valley at sunset.

Birding by Habitat: Castle Creek Valley

Birding by Habitat: Castle Creek Valley

Jul. 11th, 7:00am to 11:30am

July is an excellent time to observe birds in the upper montane aspen forests, wildflower meadows, and riparian groves of spruce of the Castle Creek Valley, offering prime habitat for classic Rocky Mountain birds such as dusky grouse, Red-naped sapsucker, yellow-rumped warbler, mountain bluebird, broad-tailed hummingbird, northern goshawk, various flycatchers, and many more.

Nature Journaling

Nature Journaling

Aug. 18th, 9:00am to 1:00pm

Explore this artistic, scientific, and reflective practice to enhance and integrate your connection with nature through journaling.

Rock Bottom Ranch

Tuesdays - Fridays, 9am-4pm
Saturdays, 9am-1pm
Tel: 970.927.6760

2001 Hooks Spur Road
Basalt, CO 81621

Hallam Lake

Mon - Fri, 9am-5pm
Sat, 9am-5pm in summer
Tel: 970.925.5756

100 Puppy Smith Street
Aspen, CO 81611

Catto Center at Toklat

Closed for renovations until spring 2023
Tel: 970.925.9157

11245 Castle Creek Road
Aspen, CO 81611

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