Qualla: Castlewood Canyon State Park

Castlewood Canyon State Park: Introduction

Fri, 30 Jan 2026 00:00:00 GMT

Photo credit Zenhaus, CC BY 3.0. The concrete ruins jut from the canyon walls like broken teeth, moss-covered and half-buried in sediment. In 1890, someone thought it was a good idea to dam Cherry Creek here in Castlewood Canyon. Forty-three years later, on the night of August 3, 1933, heavy rains proved them wrong. The dam collapsed at 1:00 a.m., sending a fifteen-foot wall of water rushing down Cherry Creek toward Denver, fifteen miles away. Today, visitors hiking through Castlewood Canyon State Park can still trace the damage left by that night, a dramatic centerpiece in a park that offers far more than its most famous catastrophe.

Image: Zenhaus | CC BY 3.0

Castlewood Canyon State Park: The Night the Dam Broke

Fri, 30 Jan 2026 00:00:00 GMT

Photo credit Zenhaus, CC BY-SA 3.0. The Castlewood Dam was built in 1890 to store water for irrigation along Cherry Creek. For decades it held, but the structure was never engineered for the kind of cloudburst that struck on the night of August 3, 1933. The dam suffered a complete collapse, and the released water f...

Image: Zenhaus | CC BY-SA 3.0

Castlewood Canyon State Park: Where the Plains Meet the Pines

Fri, 30 Jan 2026 00:00:00 GMT

Photo credit Zenhaus, CC BY 3.0. Castlewood Canyon sits on the edge of the Palmer Divide, a geologically upraised area that catches more moisture than the surrounding eastern Colorado plains. This extra rainfall waters the northernmost extension of the Black Forest, creating a surprising band of ponderosa woodla...

Image: Zenhaus | CC BY 3.0

Castlewood Canyon State Park: Wings and Rattles

Fri, 30 Jan 2026 00:00:00 GMT

Photo credit Zenhaus, CC BY 3.0. The canyon's varied habitats support a surprising density of wildlife for a park so close to the Denver metro area. Golden eagles and prairie falcons ride the thermals above the rim, while turkey vultures circle the canyon on broad, tilted wings. On the ground, coyotes and red fo...

Image: Zenhaus | CC BY 3.0

Castlewood Canyon State Park: Layers of Human History

Fri, 30 Jan 2026 00:00:00 GMT

Photo credit Zenhaus, CC BY 3.0. Long before the dam was built, people sheltered in these canyon walls. The Cherry Creek Rockshelter, an archaeological site within the park, preserves evidence of ancient habitation along the creek. The park itself came together in stages: an 87-acre land purchase in 1961, an add...

Image: Zenhaus | CC BY 3.0