- Racehorse Falls (waterfallsnorthwest.com)
Racehorse Creek thunders over a great waterfall situated within a short, shallow and very interesting gorge. The falls drop a total of 139 feet over four distinct steps. The first two tiers are back-to-back punchbowl-type plunges of 19 and 44 feet respectively, which both feature deep potholes at their bases. Immediately below the second tier the creek accelerates down a ramp-like cascading fall for about 15 feet and then comes to the final drop where it first plunges over an undercut ledge and then slams onto a diagonally pitched bedrock ramp and veils out in a broad sheet, with a small pool on one side about three-quarters of the way down and ending in a much larger pool. The basin at the bottom of the falls is held back by a second diagonally pitched ramp of bedrock, within which is another small fall of about 10 feet.
- Pend Oreille River (Wikipedia)
The Pend Oreille River (/ˌpɒndəˈreɪ/ POND-ə-RAY) is a tributary of the Columbia River, approximately 130 miles (209 km) long, in northern Idaho and northeastern Washington in the United States, as well as southeastern British Columbia in Canada. In its passage through British Columbia its name is spelled Pend-d’Oreille River. It drains a scenic area of the Rocky Mountains along the U.S.-Canada border on the east side of the Columbia. The river is sometimes defined as the lower part of the Clark Fork, which rises in western Montana. The river drains an area of 66,800 square kilometres (25,792 sq mi), mostly through the Clark Fork and its tributaries in western Montana and including a portion of the Flathead River in southeastern British Columbia. The full drainage basin of the river and its tributaries accounts for 43% of the entire Columbia River Basin above the confluence with the Columbia. The total area of the Pend Oreille basin is just under 10% of the entire 258,000-square-mile (670,000 km2) Columbia Basin.