Travelers are voting Boulder Creek, Left Hand Creek and Ralston Creek as the best of 3 rivers near Boulder. There are 6 rivers near Greeley a city just 104 km from Boulder and 7 rivers near Sedalia which is 83 km distant. The most popular of these are Big Thompson River near Greeley and Boulder Creek in Sedalia. You can find 74 rivers in Colorado and 3914 rivers in the country of United States. Our members favorite in Colorado is Boulder Creek and Ohio River is the top pick in United States. Want more? Check out our map of rivers near Boulder.