The waterway runs from the Missouri River headwaters to the Pacific Ocean.
Apache trout thrive in cooler, smaller headwaters of streams.
The Green Swamp is the headwaters for five major river systems.
The headwater is a small pool by the side of a lane.
Coincidentally, a bridge crosses the creek near its mouth: as becomes clear afterward, the speaker traces the creek from the mouth to its headwaters.
The headwaters of both streams are in the reserve, and they are up to 7 km long and third order within the reserve limits.
Both core series were located near the headwaters of their respective bajoriver systems.
The headwaters of the river, and the region where most of the precipitation occurs, is in the upstream nation, nation #1.