Rivers.run provides water levels, water temperature, and other information, using data collected from over 10,000 gauges. It matches this information with crowdsourced paddling expertise to tell you what a river height actually means, and to provide skill level estimates.

You can use GPS coordinates to find rivers near you, and search rivers by water levels, skill, name, and rating, as well as user provided tags and dam releases, helping you find whitewater (or flatwater) rivers that you want to paddle.