NPS Trails Management HandbookU.S. Department of the Interior, National Park Service, Denver Service Center, 1988 - National parks and reserves - 53 pages |
Common terms and phrases
adequate angle avoided backcountry berm CAIRN campsites CLINOMETER condition survey condition/corrective surveys Corduroy Construction CYCLOMETER debris deck Denver Service Center DIAMETER DRAINAGE DIP drainage ditches edge elevation erosion excavation feet Foot Bridge foot trails Fords gravel ground guidelines handbook hazards headers Herbicides hillside horse trails illustration impacts inches Log Water Bar maintenance activities maintenance level maintenance process minimize minimum National Park National Park Service native material natural natural environment normally Outsloping possible PREVAILING GRADE proper drainage puncheon removed repair retaining wall ROCK OR LOG runoff scenic shelters sideslopes Sign Maintenance snowmobile soil cement specific standard steep stream stringers structures stumps switchback terrain traffic trail base trail corridor trail inventory trail location trail log trail maintenance trail management trail or segment Trail Sign trail surface trail tread trail users Trailblazes trailheads trails are maintained trails require TREAD MATERIAL tread width tree Turnpike Section type of trail visitors