Trail Difficulty Ratings
A simple colored symbol to classify a trail's difficulty was first used for ski trails and is now being used for hiking, bicycle, other trails and even airport security lines.
- Green circle - easy
- Blue square - moderate
- Black diamond - difficult
Other systems may be used in different locations.
Read more about this topic: Walking Trail
Famous quotes containing the words trail and/or difficulty:
“You will trail across the rocks
and wash them with your salt,
you will curl between sand-hills
you will thunder along the cliff
break retreat get fresh strength
gather and pour weight upon the beach.”
—Hilda Doolittle (1886–1961)
“A parent who from his own childhood experience is convinced of the value of fairy tales will have no difficulty in answering his child’s questions; but an adult who thinks these tales are only a bunch of lies had better not try telling them; he won’t be able to related them in a way which would enrich the child’s life.”
—Bruno Bettelheim (20th century)