The upper watershed is heavily forested and has been logged for several decades.
Fog drip may play a key role in the precipitation in the upper watershed.
The upper watershed consists of at least 22 named creeks.
The Forest Service is playing a lead role in conservation efforts in the upper watershed.
Beginning around 1950, hydroelectric power has been produced by impounding water in the upper watershed.
For example, alterations in the upper watershed can impact the entire lake ecosystem.
These riparian habitats are now only found in the upper watershed.
In the upper watershed, the program promotes forest management, biodiversity conservation, and land use planning to protect a steady, year-round source of clean water.
The soils in the upper watershed tend to be shallow and rocky, leading to rapid runoff.
The increased erosion is caused by extensive logging in the upper watershed, which began in the 1950s and continues today as the primary land use.