Willowbrook Amphitheatre, also known as Chief Colorow's Cave, is a

cave A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea ...

-like structure composed of

Paleozoic The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ' ...

Age

Fountain Formation The Fountain Formation is a Pennsylvanian bedrock unit consisting primarily of conglomerate, sandstone, or arkose, in the states of Colorado and Wyoming in the United States, along the east side of the Front Range of the Rocky Mountains, and alon ...

sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates ...

. The top is open to the sky. Willowbrook Amphitheatre is located in the Willowbrook subdivision in Jefferson County, near

Morrison, Colorado The Town of Morrison is a home rule municipality in Jefferson County, Colorado, United States. The population was 428 at the 2010 census. Red Rocks Amphitheatre is located nearby. History This small foothills settlement is named after George ...

, south of

Red Rocks Park Red Rocks Park is a mountain park in Jefferson County, Colorado, owned and maintained by the city of Denver as part of the Denver Mountain Parks system. The park is known for its very large red sandstone outcrops. Many of these rock formations wi ...

and

Red Rocks Amphitheatre Red Rocks Amphitheatre (also colloquially as simply Red Rocks) is an open-air amphitheatre built into a rock structure in the western United States, near Morrison, Colorado, west of Denver. There is a large, tilted, disc-shaped rock behind ...

. It is located on private land, and is restricted to the use of the association residents for

wedding A wedding is a ceremony where two people are united in marriage. Wedding traditions and customs vary greatly between cultures, ethnic groups, religions, countries, and social classes. Most wedding ceremonies involve an exchange of marriage ...

s and local events. Colorow's Cafe was named for Chief Colorow who is said to have used the cave along with his band for temporary shelter during his summer visits.

References

Landmarks in Colorado Rock formations of Colorado Fountain Formation Geography of Jefferson County, Colorado Landforms of Jefferson County, Colorado Amphitheaters in the United States {{Colorado-geo-stub