Help! CALIFORNIA - Single Track & RV Camps close by??

Hi all!

I am new to 'Ridemonkey' and decided to join because I am traveling to California next year for some single track action around California - I will be traveling by RV, this is where I am finding the most difficulty in planning the trip, i.e. finding RV camps close the the riding areas, as I do not know the areas at all!!

This is where I am planning to go - can you help me with any information on anything from the best trails to ride to (most importantly) where I can pitch an RV nearby (website links would be great!):

Marin County
Not sure where I'm going to ride yet & also do not know any RV Parks?

Annadel
Riding at Annadel State Park & do not know any RV Parks?

Downieville
Will ride various trails here, but where is the best place to locate an RV, in or VERY close to Downieville itself?

East Tahoe
Riding the Flume Trail - where can we pitch an RV near here?

South Tahoe
Riding Mr Toad's - where can we pitch an RV near here?

Mammoth Mountain
Not sure where we are going to ride yet, suggestions would be great! & looking for an RV park near the best single track in this area?

Death Valley National Park
Not sure where we are going to ride yet, suggestions would be great! & looking for an RV park near the best single track in this area?

Thats as far as I have got so far......we will be then going back across to the West (LA) & then heading back up to Santa Cruz & finally back into San Francisco where we started - so any suggestions for LA & Santa Cruz would be great also.

Thanks for your help.......

Nobody cycles in California....I can't believe that??