ORRRC Study Report, Masalah 20-21

acreage acres Angeles Atlanta SMSA average beaches boating Callaway Gardens camping census central city Chicago area Chicago Park District Commission Cook County day-use driving estimated factors Federal fishing Fulton County future Georgia Grand Marais hunting Illinois income increase Jekyll Island Lake Lake Michigan land leisure located Louis Louisans major megalopolis Meramec State Park metropolitan areas metropolitan residents metropolitan statistical area Michigan miles million Missouri National needs Negroes nonwhites ORRRC Study Report outdoor activities outdoor recreation activities outdoor recreation areas Outdoor Recreation Resources overnight park visits participation in outdoor percent persons picnic place of residence planning population potential present problems reation recreation opportunities recreation sites relatively reservoirs residents of large rural sightseeing southern California square miles swimming Table tion trend urban vacation trip visitors water skiing York York City zone