Natural Environments

Canyon Environmental policy Nature conservation Recreation Elasticity Economic aspects United States. Congresses. Experience Wilderness areas Income Dummy variables Wilderness Hell's canyon ACT) Users Michigan State University Waterfowl Hunting Hell's BWCA Ac Res Amenity Ar Sh Conditional Median Function Dummy Variable Coterminous United States Cross Elasticities Marginal Net Benefit National Wilderness System Hunting Days Sport Fisheries Wilderness Act Wilderness Recreation Landscape Types Migratory Waterfowl Wild River Wilderness Users Pacific Flyway Purism Score Wilderness Tract Washington Public Power Supply System Wilderness experience Wilderness Visits