Home / Directory / California / Sierra Conservation Center Scc
Sierra Conservation Center
Sierra Conservation Center (SCC) contact, address, visiting, phone, mail and travel details. Confirm custody and current rules with the responsible agency.
Facility record · California
SCC · Jamestown · Tuolumne County
- SecurityLevels I–III
- Population4,136
- Occupancy90%
Jail411 holds no custody records. A listing here does not mean anyone is held at this address.
Sierra Conservation Center (SCC) is a state prison in Jamestown, Tuolumne County, California. By capacity it is the 1st-largest of the 30 state prison records listed for California with a published capacity. It is one of 3 correctional facilities in Tuolumne County, and California operates 30 state prisons in total.
Contact & details
CDCR Infrastructure Master Plan, Appendix 1 (May 2026), period ending 30 April 2026
Finding someone first
Nothing below works without two things: confirmation that the person is at Sierra Conservation Center, and their CDCR number. Book a visit without them and you will be turned away; post a letter without the number and the mailroom cannot route it.
CDCR's public search covers people in CDCR custody. A disclaimer must be accepted before searching, and CDCR states the tool is informational rather than an official record. County jail populations are held separately.
CIRIS — California Incarcerated Records and Information Search ↗
Visiting Sierra Conservation Center
This is what the institution publishes, in the order you will meet it: when visits run, how to get approved, how to book, when to arrive, and what you may carry in.
When visits run
Visiting open · 24 August 2026Get approved
You must be approved before booking. The incarcerated person first sends you a signed CDCR Form 106 Visiting Questionnaire. Complete that exact copy, then mail it directly to SCC’s Visiting office.
Send it to: Mail the completed questionnaire to Sierra Conservation Center, Attention: Visiting, 5100 O’Byrnes Ferry Road, Jamestown, CA 95327.
What not to do: Do not mail the completed questionnaire back to the incarcerated person. Send it directly to SCC’s Visiting office at the staff-mail address above; incarcerated-person mail uses 5150 O’Byrnes Ferry Road and a housing number.
Book through the scheduling application
Use VSA for SCC contact visits. Online scheduling opens Thursday at 6:00 a.m. and closes Tuesday at midnight for the following weekend; emailed requests are not reviewed.
Open the Visitation Scheduling Application ↗
Walking in: Walk-ins are first-come, first-served during the published windows and are not guaranteed. A scheduled visitor arriving 15 or more minutes late is treated as a walk-in.
Non-contact and restricted-housing visitsNon-contact visiting is not a choice — it is what applies while someone is in reception (newly admitted to CDCR, or just transferred between prisons) or is segregated.
Arrive, and report to visitor processing
Many prisons allow vehicles onto grounds only about one hour before visiting starts. Expect screening, possible vehicle inspection, and a processing wait that can occasionally reach two hours.
Parking: Use the designated visitor parking area at 5100 O’Byrnes Ferry Road and follow posted spaces and staff direction. Appointment and walk-in visitors may enter grounds no more than 30 minutes before their respective start time.
Where to report: Use Sierra Conservation Center’s visitor entrance at 5100 O’Byrnes Ferry Road. Visitors with appointments may enter grounds no more than 30 minutes before the appointment.
Bring the right things, and only those
Allowed in
- Only CDCR-listed items may enter, including limited cash, a small clear bag, two keys, ID, limited photos/documents and specified baby/medical items; weapons and illegal drugs are prohibited.
Identification: Adults must show valid, current photo identification: a state driver license/DMV ID, armed-forces ID, ICE ID, U.S. or foreign passport, or Mexican Consulate photo ID.
How many may visit: Scheduled visitors have priority. Walk-in visits are first-come, first-served, processed only as time allows and never guaranteed.
Bringing a child: A visitor under 18 must be accompanied by an approved adult and bring a certified birth certificate; guardians also need proof of guardianship, and other accompanying adults need annually updated notarized consent.
Video visits and cost: The current statewide transition page posts Securus video at $0.10 per minute with 30 free minutes monthly; institution transition dates are tentative, so verify the facility platform before purchase.
Phone calls, money and mail
Phone calls
You cannot call in. CDCR states that it is up to the incarcerated person to initiate the call, and that calls are limited to 15 minutes. That single fact explains most of what families find confusing: the switchboard will not connect you, there is no voicemail, and a call arriving from an unfamiliar number is normal. What you can do from the outside is make sure the call can reach you — that your number is not blocked by your carrier, that it is not a VoIP or virtual number the system will refuse, and that whatever account arrangement the facility uses is set up and funded before he tries. For anything urgent, a message goes through the institution rather than the phone system.
Putting money on the books
Before anything else you need the person's CDCR number, from California Incarcerated Records and Information Search (CIRIS), and their current location from CDCR's facility locator. CDCR then lists three routes. Electronic funds transfer through one of its vendors: GTL/ConnectNetwork, JPay, or Access Corrections. A lock box deposit, which CDCR states carries no fee when sent by money order, personal check or cashier's check: complete the Money Order Deposit Form with the sender's name and address, make the payment payable to JPay, and mail it to JPay, 2202 South Figueroa St, Box #3001, Los Angeles, CA 90007. CDCR caps this at $999.99 per money order, holds personal checks for ten business days, and warns that any letter or note enclosed with a payment will be discarded. Or send a check or money order to the institution itself. Vendor fees vary by amount and method, so check the vendor's own figure before you send.
Writing to someone here
Anyone may write to a person in a California state prison. Incoming letters are opened and inspected for contraband, then forwarded. CDCR asks that the envelope carry the person's full committed name and CDC number, the institution name, the P.O. box and housing assignment where known (CDCR states housing is preferable), and the city, CA and ZIP. The housing assignment is the part most people do not have: get it, and the CDCR number, from California Incarcerated Records and Information Search (CIRIS), from the institution's Public Information Officer, or from CDCR's Identification Unit. Note that the address mail goes to is not always the institution's street address, so confirm it before posting anything you cannot replace.
Full committed name · CDCR number · housing
Sierra Conservation Center (SCC)
Inmate Mailing Address: Inmate Name and CDCR Number, 5150 O'Byrnes Ferry Road - Housing #, Jamestown, CA 95327
Full committed name · CDCR number · housing
Sierra Conservation Center (SCC)
Staff Mailing Address: 5100 O'Byrnes Ferry Road, Jamestown, CA 95327
Getting there, and staying
Jamestown has limited lodging, while Sonora has a broader hotel district. These are planning options, not endorsements; confirm the exact room, accessibility, parking, deposit and cancellation deadline. Tuolumne County Transit Route 3 connects Sonora and Jamestown, but its published route does not establish a stop at SCC’s visitor entrance on O’Byrnes Ferry Road.
Where to stay
Somewhere to eat
| Place | What and when | Phone |
|---|---|---|
| Subway18141 Highway 108, Jamestown, CA 95327 | Official page lists daily 8:00 a.m. opening, breakfast, mobile ordering, delivery and catering | (209) 984-4051 |
| Taco Bell13770 Mono Way, Sonora, CA 95370 | Official page lists breakfast through 10:45 a.m., drive-through and online ordering; confirm the location’s current opening time |
Inside the institution
Two dormitory-type facilities for minimum and low-medium custody and one 270-design facility with celled housing for high-medium custody.
Restricted housing
CDCR defines Restricted Housing Unit placement as temporary, case-by-case housing when a person cannot safely remain in a less restrictive setting; programming, required out-of-cell time and rehabilitative opportunities continue under the current statewide framework.
Health care, programs and release preparation
These services differ by institution. The details below describe what this prison reports, not a systemwide promise that every person qualifies for every program.
Health care
SCC houses people medically designated low- to medium-risk and those at Correctional Clinical Case Management System mental-health level or lower; CCHCS provides institutional medical, dental and mental-health care.
Education, training and work
Programs include ABE I-III, GED, community college, firefighter training, vocational trades, alternative education, religious programs, PIA textiles, self-help groups and ISUDT.
Preparing for release
Firefighter and vocational training, college, self-help and substance-use treatment support rehabilitation and release preparation.
Reported figures
These are the institution’s own returns to the state, and every group is dated. They have to be: the figures come from separate documents on separate cadences, and reading the whole set as one snapshot would be wrong.
Capacity and population
as at 30 April 2026How the population is housed
as at 30 June 2024Staffing
as at 30 June 2024Education and training
as at 30 June 2024CDCR Infrastructure Master Plan, Appendix 1 (May 2026) (Public record) · California Department of Corrections and Rehabilitation, SB601 Reporting (CC BY 4.0)
Guides that go wider than this institution
These cover the same ground across every facility in the directory, which is what you want if the person may be moved, or if you are helping someone in a different state.
Other facilities in Tuolumne County
Clear information.
Clear boundaries.
Jail411 is an independent information resource for families and friends. We are not a government agency, jail operator, law firm or live custody-records service.
Can Jail411 tell me if someone is in custody right now?
No. Jail411 does not hold live custody records. Use the official locator for the county, state, federal or ICE system that has the person; start here if you do not know which.
Does posting bond mean the person comes home?
Not always. A probation or parole hold, another county's warrant or an immigration detainer can keep someone in custody after bond is posted. Ask the jail what holds are on the booking before you pay.
What should I confirm before visiting?
The person's current facility, the visiting schedule, approval requirements, accepted identification and arrival instructions. Check the facility page and its official sources before you travel.
What if I find something that needs correcting?
Send us the page and the detail that needs attention. Include the official source when you have one. Do not send private booking documents or other sensitive personal information.
Plan the next step.
Practical guides for calls, visits, mail, money and release.