Visitor Center Powell, Wyoming is your Gateway to Yellowstone. Perfectly located in the Big Horn Basin, next to Yellowstone National Park’s East Gate and North East Gate. Powell is surrounded by public lands in the Greater Yellowstone Ecosystem. In Park County, 80% of our lands are managed by a federal agency. What does this mean? You are not only allowed, but encouraged, to discover the massive amounts of your lands in Park County, Wyoming. Economic Development PEP is a resource for your business to start, grow, or relocate to Powell, Wyoming. Do you have a vision for a business that solves a market need? PEP can help you take your business from idea to reality by leveraging the tools and resources available to you regionally.