Image of a the inside of a Prison Facility

Sierra Conservation Center (SCC)

Contact & Visiting Information

Main Phone: (209) 984-5291

Physical Address:

  • 5100 O'Byrnes Ferry Road, Jamestown, CA 95327

Inmate Mailing Address:

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

Staff Mailing Address:

  • 5100 O'Byrnes Ferry Road, Jamestown, CA 95327

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

Visiting Hours:

Saturdays, Sundays and Designated Holidays from 8:30 a.m. to 3:30 p.m.
Designated Holidays*  from 8:00 a.m. to 2:30 p.m.
* New Year's Day, Independence Day, Thanksgiving Day, Christmas Day

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.

Visiting Assistance:

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.

Statewide Inmate Family Council Message:

Local Inmate Family Councils (IFC's) are a gathering of family and friends of the incarcerated who meet regularly with Wardens to support visiting since keeping strong family connections with loved ones is a powerful rehabilitative tool. These IFC's promote visiting by clarifying rules and regulations as well as discussing health, education, vocational training, packages, books, and related issues. For more information on connecting with a local IFC, please visit the Statewide IFC website.

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.

About Sierra Conservation Center

Aerial of Sierra Conservation Center, Jamestown.
Aerial photo. Click image for larger view.

The primary mission of the Sierra Conservation Center (SCC) is to provide housing, programs and services for minimum and medium custody inmates. SCC is one of only two prisons in the State responsible for the training and placement of male inmates in the Conservation Camp Program. SCC administers 20 male camps located from Central California to the Mexican border.

Institution Details

SCC functions as the center for training staff and inmates in firefighting techniques. The prison is separated into two dormitory type facilities for minimum and low-medium custody inmates. A separate high-medium custody facility is for Sensitive Needs Yard (SNY) placement.

Each of the 20 Conservation Camps is a self-contained "prison without walls." The camps are sited in rural or wilderness areas for fire suppression. Inmates assigned to camps are dispatched to fight wild land fires and other emergencies when needed and a variety of community work projects. This results in a tremendous cost savings to tax payers of the State of California.

SCC houses inmates designated by medical as low to medium risk, and identified by the Mental Health Services Delivery System as Correctional Clinical Case Management System or lower. Inmates at SCC are encouraged to attend education programs that include Adult Basic Education, General Educational Development programs, Career Technical Education in Computer Literacy, Building Maintenance, Carpentry, Masonry, Welding, Auto Body Repair, and Auto Mechanics/Engine Repair. A multitude of other voluntary programs that afford the inmates opportunities for self-improvement are available as well to include Alcoholic Anonymous/Narcotics Anonymous, Veterans Support Group, Freedom and Choice, Meditation, Victims Impact, Alternatives to Violence, Responsible Fatherhood, 12 Steps, Criminals and Gang Anonymous, Self-Awareness and Recovery, Celebrate Recovery, and Anger Management.

SCC also offers the Substance Abuse Treatment (SAT) program on the Level III SNY facility. The SAT program provides comprehensive substance abuse services including assessments, treatment planning, and placement into community-based substance abuse programs in an effort to reduce recidivism.

Warden Martinez

About the Warden

Joel Martinez has been acting warden at Sierra Conservation Center (SCC) in Jamestown, California since November 2015.

Mr. Martinez has served in several positions at SCC beginning in 1993 including Chief Deputy Warden, Associate Warden, Correctional Captain, Correctional Counselor III, Correctional Counselor II, Correctional Counselor I, and Correctional Officer. He served as a Correctional Counselor I at High Desert State Prison in Susanville, California from 1997 to 1998. Mr. Martinez was assigned to Wasco State Prison in Wasco, California from 1992 to 1993 as a Correctional Officer. Upon graduating from the Richard A. McGee Correctional Training Center in 1989 he was assigned to the California Correctional Center in Susanville, California as a Correctional Officer.