DENVER – Summer fairs return this weekend in Denver, Greeley, Evergreen, Walden, and Calhan. The “Daddy of ‘Em All” is back in Cheyenne for a 128th year. Turnpike Troubadours, Jason Aldean and Jelly Roll help kick off the annual Western celebration Cheyenne Frontier Days. Cat, art, tattoo, and wood-carving…