Powerball and Colorado Lotto Results - This site is updated following a drawing of the Powerball, Lotto or Cash 5 Colorado Lottery games. - http://www.copowerball.com/
Colotto.com - Complete drawing history for the Colorado Lottery games including Powerball, Lotto 6/42, and Cash 5. Updated nightly. Generate custom reports and quick picks. - http://www.colotto.com
Colorado Lottery - Official site for the state lottery commission. Includes winning numbers, gaming rules, available games and descriptions, and current jackpot amounts. - http://www.coloradolottery.com/