Landmark information
- Location: 
 Preston School of Indusrty, Waterman Rd; plaque located 0.9 mi N of site on State Hwy 104 (PM 4.3), 1 mi N of Ione
- Plaque: 
 Official State Plaque
- Site: 
 Existing
- Date First Visited: 
 5/26/1996
- Date Most Recently Visited: 
 12/10/2016
- GPS Coordinates: 
 Plaque: N 38 21.923, W 120 57.017; Site: N 38 21.644 W 120 56.205
- Other Designations: 
 National Register of Historic Places
About this landmark
                Plaque text: 
				
				Preston Castle
				
				The "Castle", built in 1890-1894, is the most significant example of Romanesque Revival architecture in the Mother Lode. It was built to house the Preston School of Industry, established by the state legislature as a progressive action toward rehabilitating, rather than simply imprisoning, juvenile offenders. Doors of the 120 room "castle" closed in 1960 after new facilities were completed.
              
 
                   
                   
                   
                  