NR 45.13(17)(c)(c) Special use zone calendar. The department shall establish and maintain an annual calendar of use for the recreational uses listed par. (d) recognizing the priority of special uses designated in this section for the dates indicated. NR 45.13(17)(e)(e) Picnics and camping. Picnicking and camping incidental to a use in par. (d) is authorized if indicated as such in the permit. NR 45.13(17)(f)(f) Priority activities. The following uses shall have priority on a first-come, first-served basis over all other uses during the period indicated: