Crazy Rainbow Fly Fishing is a Wyoming-based outfitter and guide service serving anglers since 2002. Based in Casper, the company specializes in guided fly-fishing trips on the North Platte River and other renowned regional waters, including Grey Reef, Miracle Mile, Fremont Canyon, the Big Horn River, and Wyoming lakes. Its guides offer fishing experiences for a range of skill levels, with private river access that lets clients walk, wade, and enter or leave the water along selected stretches. Trips also include carp fishing and corporate or group outings, while the company’s Cast and Blast options combine fishing with other outdoor activities.

For anglers seeking more distant adventures, Crazy Rainbow arranges guided destination trips to Patagonia, Ascension Bay in Mexico, and Bolivia, including remote fishing camps. The business also provides accommodations at Crazy Rainbow Lodge and the Crazy Rainbow River Cabin, with lodging reservations and dining options. Its Ugly Bug Fly Shop in Casper supplies fly-fishing gear and equipment.