Swift Creek is a southward-flowing tributary

Tributary

A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...

 of the Baker River

Baker River (Washington)

The Baker River is an approximately , southward-flowing tributary of the Skagit River in northwestern Washington in the United States. It drains an area of the high North Cascades in the watershed of Puget Sound north of Seattle, and east of Mount Baker...

, about 7 miles (11.3 km) long, in Whatcom County in the U.S. state of Washington. It rises in glaciers near Table Mountain and Kulshan Ridge, and flows west before being joined by more glacial tributaries. It then winds south-southeast for several miles to Baker Lake

Baker Lake (Washington)

Baker Lake is a lake in northern Washington in the United States. The lake is situated in the forested Baker River valley southwest of North Cascades National Park, and is fed by that river and numerous smaller tributaries. It lies about north of the city of Concrete.The lake covers an area of ...

 reservoir, and there it is joined by Morovitz Creek directly before it enters the lake. Park Creek is a small east-flowing stream that enters Baker Lake very near Swift Creek, but should not be confused as a tributary with it. NFD 11 (Baker Lake Road) crosses the creek near its mouth, which is just downstream of Shannon Creek

Shannon Creek

Shannon Creek is a short tributary to the Baker River in Whatcom County, Washington, near the southwest border of North Cascades National Park. It rises in two forks a few miles south of Mount Shuksan; the glacier-fed north fork begins at elevation , and the non-glacial south fork begins at...

.