The E-K Creek segment of the Whitewater River in Wyoming is a popular destination for kayakers and experienced white water enthusiasts. The ideal streamflow range for this river segment is between 300 and 800 cubic feet per second (cfs), which provides a challenging yet manageable experience. This segment is rated as a Class III to Class IV river, featuring challenging rapids and obstacles that require technical skill and experience to navigate.

The E-K Creek segment has a total length of around 4.5 miles, with an average gradient of around 100 feet per mile. The river features a series of steep drops and narrow channels, as well as several boulder gardens and technical rapids. Some of the most notable rapids on this segment include the Upper and Lower E-K Falls, as well as the Knuckle Sandwich and Teapot rapids.

In addition to technical challenges, the E-K Creek segment is subject to specific regulations to protect the natural environment and ensure safety for all visitors. These regulations include a ban on camping and fires along the riverbank, as well as restrictions on the use of motorized boats and other disruptive activities. Visitors are also required to obtain a permit before accessing the river, and are encouraged to practice Leave No Trace principles to minimize their impact on the surrounding ecosystem.