Rating Symbol |
Brief
Definition |
Surface |
Grade |
Obstacles/
Steps |
easiest |
Paved Accessible Trail |
Paved or hard and smooth |
|
None |
easy
|
Mostly smooth and wide |
Dirt with occasional unevenness |
|
2" or less, rocks and ruts |
moderate |
Mostly smooth, variable width |
Dirt with occasional unevenness |
|
<8" rocks and ruts, loose material |
moderate difficult |
Mostly uneven surfaces |
Dirt and rock |
|
<12" rocks and ruts, loose material |
difficult |
Long rocky segments with possible drops and exposure |
Dirt and loose rock with continual unevenness |
|
12" or taller, loose rocks, exposure to drops |
extremely difficult |
Long rocky segments with possible drops and exposure |
Dirt and loose rock with continual unevenness |
|
12" or taller, loose rocks, exposure to drops and excessive heat >90F |