PO Box 239

Emigrant, MT 59027


  • White Facebook Icon
  • White Twitter Icon

© 2016 Upper Yellowstone Watershed Group


Yellowstone River Annual Flow


The Upper Yellowstone is not only loved by many, it has a long history of scientific and community science study devoted to it. The below is an annual flow graph of the Yellowstone River before it flows in to Yankee Jim Canyon. It is based on tree-ring studies that allow us to look back in time to 1700. For the full report on surface water supply on the Upper Yellowstone download the report here