Class INo approach, drive to the site and collect.
 Class IIShort hiking required, less than 1/4 mile with modest elevation gain.
 Class IIIHiking more than 1/4 mile over good tread with moderate elevation gain.
 Class IVAggressive hiking over steep trail, some scrambling likely.  Requires significant conditioning.
 Class VAggressive hiking, scrambling and climbing to reach the site.