Degrees of Difficulty:

(E) – Easier: usually on relatively flat ground
(up to 5 miles and/or less than 500 ft. e.g.)

(M) – Moderate: longer and more elevation gain
(over 5 miles and/or over 500 ft. e.g.)

(S) – Strenuous: long hikes and/or elevation gain
(over 8 miles and/or over 1,200 ft. e.g.)