Columbia River
The Columbia drains an area of about . Its drainage basin covers nearly all of Idaho, large portions of British Columbia, Oregon, and Washington, ultimately all of Montana west of the Continental Divide, and small portions of Wyoming, Utah, and Nevada; the total area is similar to the size of France. Roughly of the river's length and 85 percent of its drainage basin are in the US. The Columbia is the twelfth-longest river and has the sixth-largest drainage basin in the United States. In Canada, where the Columbia flows for and drains , the river ranks 23rd in length, and the Canadian part of its basin ranks 13th in size among Canadian basins. 
The Columbia shares its name with nearby places, such as British Columbia, as well as with landforms and bodies of water.
Borders of Canada
The border begins at the northwesternmost point of Minnesota's Northwest Angle 49°23′N, 95°09′W, and proceeds in an easterly direction through the Angle Inlet into the Lake of the Woods. At 41°19′N, 94°48′W in the Lake of the Woods, the border turns to a southerly direction, and continues into the Rainy River. The border then follows the Rainy River to Rainy Lake, then subsequently through numerous small lakes, including Lake Namakan, Lac la Croix, and Sea Gull Lake, until reaching the Pigeon River, which leads it out into Lake Superior. The border continues through Lake Superior to Whitefish Bay. The border then proceeds through Whitefish Bay into the St. Mary's River, then into the North Channel, then, at 45°59′N 83°26′N, turns to a southerly direction into the False Detour Channel, and reaches Lake Huron. The border then heads in a southerly direction through Lake Huron until reaching the St. Clair River, which subsequently leads it to Lake St. Clair. The border then proceeds through Lake St. Clair, reaching the Detroit River, which leads it to Lake Erie. The border then proceeds through Lake Erie into the Niagara River, which leads into Lake Ontario. The border then proceeds in a northwesterly direction in Lake Ontario, then at 43°27′N, 79°12′W, the border makes a sharp turn to a north easterly direction. The border then reaches and proceeds through the St. Lawrence River. Finally, at 45°00′N, 74°40′E, the border splits from the St. Lawrence River and continues into Quebec. This border, going from west to east, is shared with the U.S. states of Minnesota, Michigan, Ohio, Pennsylvania, and New York.