| Sixteen Mile Creek | |
| Source1 Coordinates: | 46.2656°N -110.5414°W |
| Mouth Coordinates: | 46.1056°N -111.3978°W |
| Mouth Coord Ref: | [1] |
| Subdivision Type1: | Country |
| Subdivision Name1: | Broadwater, Gallatin and Meagher County, Montana |
| Length: | 69miles[2] |
| Mouth Elevation: | 3963feet |
| River System: | Missouri River |
Sixteen Mile Creek (also known as Sixteenmile Creek) is a 69miles long tributary of the Missouri River in western Montana in the United States. It forms at the confluence of the Middle and South forks of Sixteen Mile Creek, approximately 6miles east of Maudlow. The canyon through which it travels is known as "Sixteen Mile Canyon". The abandoned grade of the Chicago, Milwaukee, St. Paul and Pacific Railroad ("the Milwaukee Road") parallels the creek through the canyon; the canyon is referred to as "Montana Canyon" in Milwaukee Road promotional material.
Sixteen Mile Creek rises in the Lewis and Clark National Forest in the Crazy Mountains in southeastern Meagher County. It flows generally west, south of the Big Belt Mountains, and southwest, past Maudlow and joins the Missouri 6miles southeast of Toston, at the site of the ghost town of Lombard.
Sixteen Mile Creek is one of the more historically important areas in Montana. Its name derives from the fact that it enters the Missouri River 16miles downstream from Three Forks, Montana. The rail bed of the original Montana Railroad runs through this creek canyon, which includes some really outstanding scenery. The Milwaukee Road abandoned this line in 1980.[3]