Agricultural Systems Modeling and Simulation (Books in Soils, Plants & the Environment)

Appalachian Trail Hiker: Trail-Proven Advice for Hikes of Any Length

Essentials of Kayak Touring

Sex in the Outdoors: A Humorous Approach to Recreation | cycling-equipment

Best Hikes of the Appalachian Trail: New England

Best Tent Camping: Virginia: Your Car-Camping Guide to Scenic Beauty, the Sounds of Nature, and an Escape from Civilization

Five-Star Trails: Tri-Cities of Tennessee and Virginia: Your Guide to the Area's Most Beautiful Hikes In and Around Bristol, Johnson City, and Kingsport

60 Hikes Within 60 Miles: Washington, D.C.: Includes Suburban and Outlying Areas of Maryland and Virginia

Paddling Long Island and New York City: The Best Sea Kayaking from Montauk to Manhasset Bay to Manhattan (Paddling Guides)