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Big Creek is a popular whitewater river run located in the state of Colorado. The ideal streamflow range for this run is between 300 and 800 cubic feet per second (cfs), which is typically during the months of May and June. This run is rated as a Class IV-V, which is considered to be an advanced level of difficulty. The segment mileage for Big Creek is approximately 7 miles, making it a relatively short but intense run.

There are several specific rapids and obstacles on this stretch of river, including Boulder Garden, Top Drop, and S-Turns. Boulder Garden is a series of large boulders that require technical maneuvering to navigate. Top Drop is a steep, narrow chute that drops into a pool below. S-Turns are a series of tight turns that require precise boat control to avoid obstacles.

In terms of regulations, there are several important considerations for anyone planning to run Big Creek. First and foremost, it is important to obtain a permit from the US Forest Service before accessing the river. Additionally, there are restrictions on the use of motorized boats, and all boaters are required to wear a personal flotation device (PFD) at all times while on the water. It is also important to be aware of private property boundaries along the river, and to respect the rights of landowners in the area.

Overall, Big Creek is a challenging and exciting whitewater run that requires skill and experience to navigate safely. With the right conditions and careful preparation, it can be an unforgettable adventure for experienced boaters.