The stone base originally displayed the plaque for California Landmark 29 before the plaque was moved to Volcano. The original mounting holes are still visible in the stone.

The plaque reads:

Pine Grove

Late 1854, in a grove of tall pines, Albert Leonard built his Pine Grove home & inn & was first postmaster. It was located at the junction of stage roads to Jackson and Clinton.

Pine Grove post office was established July 12, 1856. First school was opened about 1853.

Several nearby mines, located in east gold belt were worked during Gold Rush, prospected ever since.

Amador County Board of Supervisors
In Amador County's
125th anniversary year,
1979