Overview Silver Valley Campground is located in the Calveras Ranger District, at the east end of Lake Alpine Recreation Area in a timbered setting near several trailheads. Campground may open earlier and close later on a first come first serve basis as weather (snow level) allows. This information will be posted on this page as soon as it becomes available. The current dates for reservations have historically allowed for comfortable camping, but please take into consideration the high alp...