The online reservation portal for East Park Reservoir is down for rebuilding, but no need to let that stop you from reserving your favorite camp spot. Colusa County is currently booking over the phone. For information or to reserve campsites, call (530) 458-0467 Monday-Friday, from 7:30 AM to 4 PM. The water level at East Park Reservoir is still below 50 percent and some sites do not have access to water. Please keep that in mind before booking.