A view of a field south of Sonoma in the Spring, with mustard in bloom. Springtime Jacaranda tree in flower. Eurycea lucifuga, a cave salamander. A caver traversing a narrow passageway. Small Speleothem. Spring plants in the Sonoma Mountain Cemetery. California Poppies in Spring among fresh grass on the Sonoma Overlook Trail. Mule Deer on the Sonoma Overlook Trail in Spring. A Mule Deer on the Sonoma Overlook Trail in Spring. Flowers along the Sonoma Overlook Trail. California Poppies in Spring among fresh grass and moss and lichen covered rocks on the Sonoma Overlook Trail. California Poppies in Spring among fresh grass and moss and lichen covered rocks on the Sonoma Overlook Trail. Lupine in Spring among fresh grass on the Sonoma Overlook Trail. A California Poppy in Spring among fresh grass and moss and lichen covered rocks on the Sonoma Overlook Trail. California Poppies in Spring among fresh grass and moss and lichen covered rocks on the Sonoma Overlook Trail. A California Poppy in spring on the Sonoma Overlook Trail. A view of the town of Sonoma and the Sonoma Valley from the Sonoma Overlook Trail in spring. The first leaves of a Buckeye tree in spring on the Sonoma Overlook Trail. The first leaves of a Buckeye tree in spring on the Sonoma Overlook Trail. Shooting Star flowers in spring on the Sonoma Overlook Trail. A view of a field south of Sonoma in the Spring, with mustard in bloom. A view of a field south of Sonoma in the Spring, with mustard in bloom. Spruce branches in spring.