Collection: Eggs and Worms

Catch more trout with effective egg and worm patterns at Glenwood Springs Outdoors — proven flies for imitating natural food sources in Colorado's rivers year-round. Our selection includes realistic egg flies like Bead Eggs, Glo Bugs, Crystal Meth Eggs, and Yarn Eggs in sizes #8–#16 (pink, orange, chartreuse, cheese, and natural colors), plus San Juan Worms, Squirmy Worms, and Worm variants in red, pink, and brown.

These patterns shine during spawning seasons on the Frying Pan River (late fall/winter eggs for browns and rainbows) and after spring runoff or rain events on the Roaring Fork and Colorado Rivers, when worms wash in and trout feed heavily on drifting eggs and annelids. Weighted or unweighted, they drift naturally under an indicator or Euro-nymph setup, triggering aggressive takes from selective fish in clear tailwaters and freestone pockets.

Trusted by local guides and anglers in the Roaring Fork Valley, our egg and worm flies offer lifelike profiles, durability, and the right sink rate to match Gold Medal conditions. Available in store at Glenwood Springs Outdoors, 831 Grand Ave, Glenwood Springs, CO.

Egg and worm fly patterns for Colorado trout and steelhead fishing