Southwest of Casper and northeast of Rawlins, the Miracle Mile section of the North Platte River belo Seminoe Dam is very popular with fly fishermen. The North Platte River follows a 150 mile winding route through canyons and valleys. Above Seminoe Reservoir, the North Platte is a freestone river that comes down from the headwaters in northern Colorado. Below the Seminoe Dam, there several miles of well-known tailwater fishing (aka miracle mile). In the North Platte River, you can expect to find large brown trout and rainbow trout, but they are all pretty tough to catch.
There are year-round midge and crayfish hatches, but the main caddis season is June through Sept.
To access the miracle mile below Seminoe Reservoir, you can use Seminoe Road or Kortes Road.
If you are interested in a float trip, the most popular stretch is from Treasure Island Access point to Saratoga.
Note: The printable fly fishing river map is provided courtesy of HANDYMICROFIBERCLOTH.COM.
Overall, North Platte River - Miracle Mile is the 1st most popular fly fishing river of all 28 fly fishing spots in Wyoming.