Each trip has an overall descriptive rating (Easy, Easy/Moderate, Moderate, Moderate/Strenuous, Strenuous, and Very Strenuous) and a specific rating for duration (# of hours), elevation gain, and round-trip distance. Some trips have additional indicators of special trail conditions.
|Duration||Level of Difficulty and Elevation Gain||Round-trip Distance||Special Trail Conditions|
|A = Less than 3 hours||1 = Easy: fairly easy terrain, gentle slopes||a = 5 km||r = route/some or no trail|
|B = 3 to 4 hours||2 = Easy/Mod: gentle slopes up to 300m (1,000 ft)||b = 5 - 7 km||s = snowshoe trip|
|C = 4 to 6 hours||3 = Mod: 300m - 600m (1,000 - 2,000 ft)||c = 7 - 10 km||w = major water crossing|
|D = 6 to 8 hours||4 = Mod/Stren: 600m - 900m (2,000 - 3,000 ft)||d = 10 - 15 km||x = brushy trail|
|E = 8 to 12 hours||5 = Stren: 900m - 1,500m (3,000 - 4,500 ft)||e = 15 - 20 km||y = bushwack|
|F = 12 hours or more||6 = Very Stren: 1,500m - 2,200m (4,500 - 6,500 ft)||f = 20 km plus||z = rocky/rough in places|