Fly-Fishing Images For Sale › Gunnison River Rainbow Trout In Hand Image 1 of 1 Gunnison River Rainbow Trout In Hand $16.99 A colorful Gunnison River Rainbow trout caught fly-fishing being held and about to be released back to the river. Add To Cart Added! A colorful Gunnison River Rainbow trout caught fly-fishing being held and about to be released back to the river.