Columbia River Headwaters Map

Headwaters of the columbia river. The river rises from its headwaters near canal flats in the canadian rocky mountains of british columbia. Rivers that are more than 100 miles long.

The river flows north for some 200 miles (322 kilometers) and then turns south and flows for about. Draining a basin of 2,450 square miles (6,300 km2), it enters the columbia near the city of umatilla in the northeastern part of the state. Two fifth of the river's course, some 500 miles (800 km) of its 1,240 miles (2,000 km) length, lies in canada, between its headwaters in british columbia and the us border.

In its 1,200 mile course to the ocean, the river flows through four mountain ranges and drains more water.

While the area around butte and the clark fork river have been well known since a mining boom began in the late 1800s, particularly for copper, the headwaters of dutch creek were a mere blank spot on the map until the late 1920s. Turning west, it forms the border between oregon and washington state and empties into the pacific ocean. Are approximate, in statute miles, and were determined from usgs topo maps, obtained from. Width from 1 1/2 miles below cascade range, the river widens to a maximum of 6 miles