Bureau of Land Management, California.
Look closely at the ground you will find evidence of the vast inland sea that once covered the Tumey Hills. The light porous rocks are composed of diatoms, the tiny, bleached, shell-like skeletons of sea algae. Annual grasslands are lovely in springtime, with beautiful wildflower displays. Rarely seen federally-protected San Joaquin kit fox, blunt-nosed leopard lizard, and giant kangaroo rats make their homes in these hills. Visitors enjoy a day use facility with parking, shade structures, picnic benches, vault toilets and an interpretive kiosk with a map and information about the area.
From Interstate-5, take the Panoche Road exit. The first Tumey Hills access point is located roughly 3 miles from the Interstate. Be aware that Panoche Road is not paved after the first mile. The second Tumey Hills access point is about 5 miles beyond the first access point. The Tumey Hills are closed to vehicle access with the onset of fire season.