Map of the <a href="https://en.wikipedia.org/wiki/Kuskokwim_River" class="extiw" title="en:Kuskokwim River">Kuskokwim River</a> watershed.
<a href="//commons.wikimedia.org/wiki/User:Kmusser" title="User:Kmusser">Kmusser</a>
CC BY-SA 3.0
Self-made, based on <a href="https://en.wikipedia.org/wiki/USGS" class="extiw" title="en:USGS">USGS</a> data.