This waterfall occurs along the Boulder River approximately 2 1/2 river miles upstream of Highway 530's bridge of the Boulder River. Access is likely arduous; private property lines much of the river in the area.
- Half Mile Falls is the Historical name of this waterfall.
- Known Alternate Names: Lower Boulder Falls
This name was found on a map published by the Army Corp of Engineers, circa 1970(ish), of the water features of Washington. Whether this waterfall is the waterfall that has been named Half Mile Falls isn't certain, but the location seems fairly congruent.