The Big Hollow, National Natural Landmark in Wyoming, United States
The Big Hollow is an area in Wyoming with a network of mountain biking trails winding through woodlands and rocky formations. The paths vary in width and elevation, passing through dense forest and exposed stone terrain.
The site was used thousands of years ago by people making stone tools and extracting raw material from the ground. Excavations revealed this was an important production location for tool-making.
The site shows evidence of ancient hunters and gatherers who made and traded tools from limestone found here. Visitors can observe traces of how these people lived and worked thousands of years ago.
You can enter the trail system through a main trailhead and choose between two different loops depending on how much time you have. There are no entrance fees, and the paths are open year-round.
The location was once a busy trading hub where people exchanged materials across long distances. These trade networks show how connected ancient communities were to each other.
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