Foothills and Valleys Ecoregion Key
1 | 1st - 2nd order or <15 miles long | Go To 2 Below | |
1 | 3rd - 4th order or 15 - 60 miles long | Mountain Stream | |
1 | 5th order or >60 river miles and a direct tributary of the Intermountain Transitional River | Small Transitional Foothills River | |
2 | 1st or 2nd order, elevation >2400m, hydrology driven by alpine snowmelt | Alpine Stream | |
2 | 1st order, elevation from 1500 to 2400m, hydrology fed by ground water discharge | Mountain Spring |