(a) Any person, as an owner, lessee, occupant, or otherwise in control of land, who allows without compensation another person to use the land for designated trail or other public trail purposes or to construct, maintain, or cause to be constructed or maintained a designated trail or other public trail owes the person the same duty of care he owes a trespasser.
(b) Any person who without compensation has constructed, maintained, or caused to be constructed or maintained a designated trail or other public trail pursuant to a written agreement with any person who is an owner, lessee, occupant, or otherwise in control of land on which a trail is located shall owe a person using the trail the same duty of care owed a trespasser.