Interpretive tail stop #6: Here we look up to see the light filtering through this ring of secondary growth redwoods as it forms a “cathedral”.
Redwood forest with rich understory
Douglas fir forest
Chaparral with manzanita, ceanothus, and huckleberry
Mixed evergreen forest wth oak/madrone
The seep zone area of the CNR is located in the upper central campus, above Science Hill and Colleges 9-10. The 1/2 mile-long interpretive trail, located here, guides us through the array of habitats in the area–including redwood forest with good understory habitat, Douglas fir forest, seep vegetation, chaparral and mixed evergreen forest .
Seeps-how do they work?
The geology of this section is also of interest. The upper layer of soil is sandy and allows fast drainage of rain water producing a relatively dry surface habitat. Below the sandy soil lies a layer of mudstone. The water cannot penetrate this “table” so it runs along the mudstone layer and forming seeps in several areas where it comes up to the surface. The seeps running through the area support a diverse number of moisture-loving biota. Special features of this zone include an Azalea bog and the only extensive example of wetlands redwood forest on campus.
Interpretive trail stop #2: A seep allows these sedges thrive in an otherwise dry area.
Brochures about the interpretive trail are available from the CNR office