Jumbo Reservoir   Be the first to submit input for Jumbo Reservoir. If you have info on Jumbo Reservoir, Logan County, Colorado please submit it here to improve this web site.          These outdoors activities are available near Jumbo Reservoir.   Hotels Near Jumbo Reservoir: Days Inn Sidney, Sidney, 22 miles away Holiday Inn SIDNEY (I-80 & HWY 385), Sidney, 22 miles away Americinn - Sidney, Ne, Sidney, 23 miles away Hampton Inn Sidney, NE, Sidney, 23 miles away Americas Best Value Inn and Suites Sidney, Sidney, 26 miles away