Saint Maries River is a river located in the U.S. state

U.S. state

A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of Idaho

Idaho

Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....

. It is a 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 Coeur d'Alene Lake and thus part of the Spokane River

Spokane River

The Spokane River is a tributary of the Columbia River, approximately long, in northern Idaho and eastern Washington in the United States. It drains a low mountainous area east of the Columbia, passing through the city of Spokane, Washington.-Description:...

 drainage basin

Drainage basin

A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

 and the Columbia River Basin. The West and Middle Forks of the river join near Clarkia, Idaho

Clarkia, Idaho

Clarkia is a small unincorporated town in the southwestern corner of Shoshone County, Idaho United States. It is surrounded by publicly and privately managed forest lands of Douglas-fir, Ponderosa Pine, and Western Larch. Located just to the east of State Highway 3, the town is in the drainage...

 and run parallel to State Highway 3

Idaho State Highway 3

Idaho State Highway 3 is a state highway in northern Idaho connecting US 12 near Spalding with I-90 near Rose Lake. It is long and runs north–south.-Route description:...

 in a northwesterly direction to St. Maries

St. Maries, Idaho

St. Maries is a city in Benewah County, Idaho, United States. The population was 2,652 at the 2000 census. The city is the county seat of Benewah County. Pronounced St. Mary's.-Geography:St. Maries is located at ....

. The area is on the eastern edge of the Columbia River Plateau

Columbia River Plateau

The Columbia Plateau is a geologic and geographic region that lies across parts of the U.S. states of Washington, Oregon, and Idaho. It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains, cut through by the Columbia River...

 and is to the west of the Bitterroot Mountains

Bitterroot Mountains

The Northern and Central Bitterroot Range, collectively the Bitterroot Mountains, is the largest portion of the Bitterroot Range, part of the Rocky Mountains, located in the panhandle of Idaho and westernmost Montana in the Western United States...

.

Saint Maries River flows through Benewah County, Idaho

Benewah County, Idaho

Benewah County is a county located in the U.S. state of Idaho. Established on January 23, 1915, from sections of Kootenai County, it was named for a chief of the Coeur d'Alene Tribe. As of the 2010 census the county had a population of 9,285. The county seat and largest city is St...

 and Shoshone County, Idaho

Shoshone County, Idaho

Shoshone County is a county located in the U.S. state of Idaho. The county was established in 1864, named for the Native American Shoshone tribe. The population was 12,765 at the 2010 census. Shoshone County is commonly referred to as the Silver Valley, due to its century-old mining history...

.