In nature, when rain falls or snow melts, gravity draws water downhill, creating creeks and streams and eventually flowing into larger bodies of water, including lakes, bays, and oceans. Along the way, water is slowed and absorbed in minor depressions in the soil. Plants then receive the water they need to thrive—creating forage and habitat for local fauna and modulate temperature—increasing the chances of future rainfall. Soil and plant roots also filter water, replenishing aquifers and waterways with clean water. If we consider our built environment as an element of the watershed, we can live in harmony with natural processes.