Find a term from the labs, understand the process behind it, and see how it appears in the landscape. Each entry connects an explanation with a real observation and a model you can explore.
Term
Source
The starting point of a river’s channel, which may be a spring, a lake outlet or the convergence of small flows. The river also receives water along its course, so its source is not its only water input.
What to look for
Snowmelt near Fourth of July Lake, Idaho. Seasonal melting transfers stored snow water into streams, soils and groundwater.
