Maidu Trail to North Rim Trail -- reflecting water across exposed bedrock.

Ceanothus cuneatus (buckbrush) in flower near Maidu Trail.

Ceanothus cuneatus (buckbrush) in flower near Maidu Trail.

Quercus wislizeni (interior live oak) in flower (male catkins) near Maidu Trail.

Quercus wislizeni (interior live oak) in flower (male catkins) near Maidu Trail.

Leaves of Sidalcea robusta (Butte County checkerbloom) along Maidu Trail.

Leaves of Sidalcea robusta (Butte County checkerbloom) along Maidu Trail.

Quercus douglasii (blue oak) along North Rim Trail -- fire killed, collapsed tree on right.

Hikers along North Rim Trail in blue oak woodland.

North Rim Trail showing the thin soils over the volcanic bedrock on this ridge.

Selaginella hansenii (Hansen's spike-moss) at edge of North Rim Trail exposed bedrock.

North Rim Trail and view towards Chico.

Pentagramma triangularis ssp. triangularis (gold-backed fern) near North Rim Trail.

New houses encroaching on Upper Bidwell Park.

North Rim Trail view towards Chico, including Horseshoe Lake.

Lawrence and Barb next to blue oak in Bidwell Park.