- a river flowing E from E Colorado to the Republican River in central Kansas. 540 miles (870 km) long.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for smoky hill
The alternative that suggested itself was that the thief had gone another road, towards the Smoky-Hill route.Three Years on the Plains
Edmund B. Tuttle