In Thursday's Idaho Outdoors, I am mentioned rumors of large rainbows in Lake Walcott, but I didn't see any first hand. David and Tonya Penning of Kuna recently caught some and shared a photo. To quote a Seinfeld episode: "They're real, and they're spectacular."
Thanks to the Pennings for the photo. Good fishing in your future.
You can read the story about Lake Walcott and information about Free Fishing Day on June 14 here.