
Trail Grading Info
This mountain bike grading system is used by DOC:
Beginner
/ Grade 1: Fairly flat, wide, smooth track or gravel road.
Easy
/ Grade 2: Mostly flat with some gentle climbs on smooth track with
easily avoidable obstacles such as rocks and potholes.
Intermediate
/ Grade 3: Steep slopes and/or avoidable obstacles possibly on narrow track
and/or with poor traction. There may be exposure at the track’s outside edge.
Advanced
/ Grade 4: A mixture of long, steep climbs, narrow track, poor traction and
obstacles that are difficult to avoid or jump over. Generally exposed at the
track’s outside edge. Most riders will find some sections easier to walk.
Expert
/ Grade 5: Technically challenging. Giant climbs, narrow track and numerous
hazards including dangerous drop-offs, sharp corners and difficult obstacles.
Expect walking and possibly bike carrying.
Extreme
/ Grade 6: Downhill/free ride specific tracks. Extremely steep sections
with large drop-offs and other unavoidable obstacles. May include man made
structures and jumps.

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