I currently live in the San Francisco Bay Area of northern California.
I used to own an 1974 FJ-55 Toyota Landcruiser and only had a few
chances take it wheeling before I had to sell it. After buying my 4Runner (in Dec. 1996), I vowed not to
let this happen again. I began to collect information on how and where
to get off of the pavement with it. I've organized the list by state,
then by governing agency, then roughly in a north to south and west to
SURGEON GENERAL'S WARNING:
Reading these web pages has been known to
cause various disturbances, including itchy feet, unplanned vacations,
wanderlust, and costly modifications to sport utility vehicles, ATV's,
and other modes of conveyances that are designed for off-road use.
These pages have been directly attributed to the recent rash of
4-wheel-drive vehicle sales increases.
If you have any information on places I've not listed, please let me
If you find a broken link here, please try using your favorite search engine and try to find the new
location, search for the old page name, description, etc. If you find
the new page location, I'll be happy to update the link. If you are the
owner of one of these external pages and you change its name or move
let me know as well. I don't have the time to keep hundreds of
links updated the way the Internet changes these days. Also, if you
contact me and expect a response, please include a VALID e-mail address
so I can reply.
There are a few different trail rating system in use. You need to be
careful to know what scale a given trail is rated on. A "4"
on a 1-4 scale is a whole lot tougher than a "4" on a 1-10
scale. Here's some rating systems I've run across:
The 1-4 system:
1. All weather road; 4WD not needed.
1-1/2. Graded road; 4WD may be needed in poor weather.
2. Unimproved or rarely graded road. 4WD or extra clearance
needed at times, with no special driving skills required.
2-1/2. Road rarely maintained, 4WD, good clearance, low
gears often needed, with some extra care and a bit of driving
3. Road in difficult terrain, rarely maintained, 4WD, good
clearance, and low gears essential, with some driving skill and daring
3-1/2. Road in difficult terrain, probably maintained
only by occasional users. Excellent stock truck or utility vehicle
required, with considerable driving skill and daring needed.
4. Trail either never bladed or badly eroded. Stock vehicles
are in jeopardy. Modifications for improved off-road performance and
top driving skills needed.
4+. We can hardly improve on the original description
written a few years ago by Jack Bickers: "with driving by World
Class Yahoo Jeepers not much concerned with vehicle durability or
personal safety." It is common to have as many as 10 percent of
the vehicles experience major mechanical failures (gears, axles,
driveshafts) on these trails.
The 1-10 system:
The Jeep Jamboree version:
1 - 2. Quite mild and may not even require the use of
four-wheel drive (4WD).
3 - 4. Moderate trails in which 4WD is required.
5 - 6. You could encounter mud holes, climb over small
rocks, and generally experience more difficult four-wheeling
7 - 9 present the possibility of getting stuck. Mud holes
here will be deep and extreme, and the rock climbing will be more
10 reserved for only one - the Rubicon. Past participants
know this rating is justly deserved. You'll do things on this trail
that you never thought possible in your Jeep vehicle. The Rubicon is
not recommended for Cherokee or Grand Cherokee models.
Then there is the infamousYosemite Decimal System for those *really*
hard core trails :-) (I'd rate Surprise Canyon somewhere around a 5.6)
Class 1. Hiking (driving) on trail.
Class 2. Cross country travel requiring route finding
Class 3. Scrambling on rocks using hands as well as feet (and
Class 4. Climbing on steep terrain requiring (wire)
roped belay (a.k.a. winching).
Class 5. Climbing involving technical moves and protective
5.0 to 5.4. There are two hand- and two foot-holds for
every move; the holds become progressively smaller as the number
increases (two tires in the air - lockers required).
5.5 to 5.6. The two hand- and two footholds are there,
obvious to the experienced, but not necessarily so to the beginner.
5.7. The move is missing one hand- or foothold.
5.8. The move is missing two holds of the four, or
missing only one but is very strenuous.
5.9. The move has only one reasonable hold which may be
for either a foot or a hand.
5.10. No hand- or footholds. The choices are to pretend
a hold is there, pray a lot, or go home.
5.11. After thorough inspection you conclude this move
is obviously impossible; however, occasionally someone actually
accomplishes it. Since there is nothing for a handhold, grab it with
5.12. The surface is as smooth as glass and vertical. No
one has really ever made this move, although a few claim they have.
5.13. This is identical to 5.12 except it is located
under overhanging rock.