Trail Systems There are designated ADA facility signs around select PVFC locations. Certain sections of our field camp trails have been upgraded to ADA compliant. These two designated segments of trail are from the accessible parking pad to the Outdoor Classroom Deck, as well as to Professor Creek. The inclined trail is surveyed at 400 linear feet by 4 feet wide. Trail materials include road base gravel purchased locally topped by a specialized limestone chip aggregate. Certain weather conditions (predominantly rain and on rare occasion snow) may adversely impact trail conditions on a short-term basis.