Search USGS⌕ Search

Geology topics

J. L. Marion

Publications and source records attributed to J. L. Marion.

At least 73 records · Page 4Linked to original sources
USGS1993

Trail inventory and assessment approaches to trail system planning at Delaware Water Gap National Recreation Area

Trail system planning and management require accurate assessments of existing trail resources and their condition. A standardized and efficient process for surveying, inventorying, and assessing trail systems was developed and applied in the Delaware Water Gap National Recreation Area. Two approaches employed were (1) a Trail System Inventory, and (2) Prescriptive Work Logs. These complimentary approaches provide resource managers with valuable information regarding the location and length of individual trails, their current condition and needed maintenance work, and material and labor estimates necessary to conduct such work.

Book chapter↗
USGS1993

Campsite impact management: A survey of National Park Service backcountry managers

Though a central purpose for the creation and management of parks, visitation inevitably affects the natural resources of parks. This is particularly true at campsites, where visitation and its effects are concentrated. This paper presents partial results from a survey of National Park Service managers regarding general strategies and specific actions implemented by park managers to address campsite impact problems.

Book chapter↗