Graded dirt road. Dry, or less than 6cm water crossing depth. Slight
grades, up to 10 degrees. 2WD under most conditions. Rain or snow
may make 4WD necessary. Usually one and a half to two vehicles wide.
Rutted and/or rocky road. Water crossings up to 15cm depth. Passable
mud. Grades up to 15 degrees. Rock or holes up to 20cm. 4WD recommended
but 2WD possible under good conditions and with adequate ground
clearance and skill. No width problems for any normal vehicle. Vehicle
passing spots frequently available if less than two vehicles wide.
Quite rocky or deep ruts. Rocks to 30cm and frequent. Water crossings
may exceed hub depth with strong currents. Shelves to 15cm. Mud/sand
may require checking before proceeding. Moderate grades to 20 degrees.
Sidehill may approach 30 degrees. 4WD necessary and second attempts
may be required. Caution may be required with wider vehicles.
Heavy rock frequent and large, 30cm and may exceed hub height. Holes
frequent or deep . Shelves to 20cm. Mud/sand deep and may be present
on uphill sections. Steep grades to 30 degrees and more and sidehill
to 30 degrees and more. Water crossings to 45cm and more and may
have strong currents One vehicle wide. Body damage possible. 4WD
required. Experience needed. Vehicle Modifications helpful.
Severe rock over 15". Frequent deep holes over 15". Shelves
over 15". Mud bog conditions (long, deep, no form bottom).
Over 30" water crossings with strong currents. Steep grades
over 30 degrees. Sidehill over 30 degrees. May not be passable by
stock vehicles. Winching may be required. Experience essential.
Body damage, mechanical breakdown, rollover probable. Extreme caution