Image of a the inside of a Prison Facility

Sierra Conservation Center (SCC)

Aerial view of Sierra Conservation Center. CLICK to download a copy.
Physical Address: Inmate Mailing Address:
5100 O'Byrnes Ferry Road
Jamestown, CA 95327
(209) 984-5291

Staff Mailing Address:
5100 O'Byrnes Ferry Road
Jamestown, CA 95327

Inmate Name and CDCR Number
5150 O'Byrnes Ferry Road - Housing #
Jamestown, CA 95327

Media Requests - Contact the Public Information Officer
Lieutenant R. Kelsey at (209) 984-5291 ext. 5499

Warden Heidi M. Lackner Heidi M. Lackner,

Visiting Hours and Directions

Saturdays, Sundays and Designated Holidays*
from 8:30 a.m. to 3:30 p.m.

* New Year's Day, Independence Day,
Thanksgiving, Christmas

Non-Contact visiting is available by appointment only.

For current visiting information, lockdown information, etc., please call our visiting information line at 1-800-374-8474.


A CDCR funded Visitor Center is at the institution operated by a community-based organization under contract to CDCR. The Visitor Center provides visiting assistance to family members and friends including a sheltered place to wait before and after visits, transportation to and from local transit terminals, childcare, clothing appropriate for visits on loan, and information about local resources, visiting rules and regulations.

Visitor Center Program Director, Elizabeth Boyd, can be reached at (209) 984-5523.

General Directions:

From Sacramento:

  • Take Highway 99 south to Stockton
  • Take Highway 4 East to Copperopolis
  • Turn right on O'Byrnes Ferry Road
  • Continue for 12 miles; the prison will be on your left

From Bay Area:

  • Take I-580 east to its merge with I-5
  • Take the exit marked for Manteca and Sonora.  This will bypass the town of Manteca and take you to Highway 99 north
  • Go one mile and take a right on Highway 120 East
  • Go through Escalon to Oakdale where Highway 120 merges with Highway 108
  • Continue on 108/120 toward Sonora, approximately 25 miles
  • Turn left on O'Byrnes Ferry Road
  • Continue for approximately 3 miles; the prison will be on your right

From Southern California:

  • Take Highway 99 North from Bakersfield
  • At Merced, take Highway J-59 North toward Sonora
  • About 45 miles from Merced, take the Highway 120/108 intersect
  • Turn right and continue approx. 4 miles to O'Brynes Ferry Road; turn left
  • Continue for approximately 3 miles; the prison will be on your right
For additional information, visit this link  to customize your driving directions.

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