From the Mosquito Fork Bridge you can do a 3 to 4 day, 50-mile run to Obrien Creek Bridge at mile 112.4 but high water is needed to get you down the Mosquito Fork. This is also only a Class II to III section through the main mining district of Chicken. You could continue from either start past the Obrien Creek confluence and commit to going all the way down the Fortymile, through the Class IV Canyon Rapids to the Yukon and on down it to Eagle to end your trip.