C Lazy U Ranch – Celebrating 90 Years as a Colorado Guest Ranch There is a dude ranch out west where the Colorado River runs off the Continental Divide and winds its way through mountain valleys. It’s a land of green meadows, blue skies, and clean air. This is Colorado ranch country, and has been for over 90 years. Things have changed some since the early days, but the history of horseback riding, fly fishing and Colorado family vacations remain a stronghold of tradition that passes down from one generation to the next. Since 1919 The C Lazy U luxury guest ranch has been celebrated around the world for its rich history, rustic elegance, legendary cuisine and signature 5-SPUR SERVICE™. There is something (and then some) for everyone who enjoys our dude ranch vacations.