Trail Description: The trail is a 4.5 mile loop with the first mile or so being along a riparian stream bed environment. It then climbs steeply through dense Manzanita undergrowth for another mile before coming out to a spectacular alpine ridge trail with vistas of the whole lake valley.  It's worth the sweat.

See the link in the park page for a rough topo trail guide.
Trail head: N. 38.30, W 122.05

Trail Location: From the trailhead parking lot go south (away from the Putah bridge) across the road and through a cattle gate. The trail starts here and is marked.

Plants not Pictured:
Blue Eyed Grass (Sisyrinchium bellum)
Fiddleneck (Amsinckia menziesii)
Hounds Tongue (Cynoglossum grande)
Manzanita (Arctostaphylos sp.)
Milk Maids (Cardamine californica)
Miniature Lupine (Lupinus bicolor)
Miners Lettuce (Claytonia perfoliata)
Paintbrush (Castilleja sp.)
Purple Nightshade (Solanum xanti)
Red Larkspur (Delphinium nudicaule)
Shooting Star (Dodecatheon hendersonii)
Sticky Monkey Flower (Mimulus auriantiacus)
Wild Pea (Lathyrus vestitus)

Ferns not Pictured:
California Polypody ( Polypodium californicum)
Gold Back Fern (Pentagramma triangularis)
Maidenhair Fern (Adiantum jordanii)