COBB, Calif. – The family friendly "Rock On!" concert will be presented on Saturday, June 13.

The one-day music festival will take place at Jellystone Park, 14117 Bottle Rock Road, Cobb. 

Gates open at 2 p.m. Parking is free. Music begins at 3 p.m. and lasts until 8:30 or 9 p.m. 

The concert features four local rock bands: The Fargo Brothers, Johnny Tsunami & The Hurricanes, Beatz Werkin' and Hilarie & Milton.

Approximately 20 local vendors will offer services and handmade crafts for sale. Snacks, ice cream, beer and wine can be purchased at the Jellystone Park store. Jellystone also will be selling beer and wine at the concert.

Alcohol purchased outside the campgrounds, glass bottles and pets will not be allowed inside the concert grounds. Attendees are encouraged to bring their own coolers, water, folding chairs or blankets, sunscreen, sun umbrellas and hats, and extra cash for food and craft vendors.

Tickets can be purchased with cash at the entrance for $15 each, or two time bank credits for time bank members. Children 12 and under may attend for free.

Advance tickets, which cost $13 each, are available until 10 a.m. Thursday at The SPOT Juice Bar in Middletown, Watershed Books in Lakeport and Sphynx Urban Clothing in Clearlake. Advance tickets will be available at Jellystone Park store until Friday at 8 p.m. 

Following the Rock On! concert on June 13, there will be an after party featuring the rock band Audio Design from 8 p.m. to midnight at the Village Pub, 21365 Highway 175, Cobb.

For information about camping at Jellystone Park, call 707-928-4322. More details are on Facebook at https://www.facebook.com/pages/Friends-and-Family-Productions/802857313134499?fref=ts .