This waterfall is no more than 25 feet tall (7 m) and is split into 3 separate sections. The waterfall is not easy to find. Their is a road that leads basically right up to it but i have the feeling that it is on private property. I accordingly will not explain directions.
The falls are difficult to get a good view of as they happen to be in a large crescent shaped dropoff. I believe that if one could reach the other side of the river the other two sections would be more visible. As for now the furthest right section (as you would view it from beneath the falls) is very pretty.
Little Palouse Falls is one which you will not have an easy time getting to. It took me three trips to the area before I found it. I also have this feeling that it may be on private property so I will not disclose directions. It is however a very interesting waterfall.
The falls themselves are only about 10-15 feet tall (up to 4.5 m), but carry a large volume. The river is about 200 to 300 feet (60-90 m) across at the crest of the falls in a vast sheet of water.
I have linked a page which shows a Kayaker running over the falls. It seems like a pretty large drop but as there are few obstructions it should be a fairly clean run.