The East Fork and Hayden Fork have several ponds that are generally in swampy, brushy areas. Either wear waders or be prepared to get wet and dirty. Small nymphs and terrestrials are effective in this area. Yellow humpies in size 14 or 16 can be very productive. Bead head prince nymphs and weighted damselfly nymphs are a good bet for fooling fish in the beaver ponds.
Small spinners work well, especially with the addition of a small worm.
Ultralight spinning tackle will cast one half of a night crawler without any additional weight, providing a fairly quiet presentation in the still waters of beaver ponds. How to get there From Kamas, take SR 150 northeast past Mirror Lake. The Hayden Fork of the Bear River follows the road north to its confluence with the Stillwater Fork, near Stillwater Campground, and the East Fork by East Fork Campground. This portion of the Bear River and its tributaries are mostly in the Wasatch-Cache National Forest, and access is excellent. SR 150 gives access to the Hayden Fork and the Bear River below the other two main forks.