CONTENTS 



Page 



INTRODUCTION 1 



PREVIOUS STUDIES 3 



STUDY OBJECTIVES 5 



The Study Area 6 



SAMPLE DESIGN 9 



Sample Selection 10 



METHODS 11 



Interviewing Procedures 11 



Registration Stations 12 



Traffic Counters 13 



RESULTS 15 



Registration Rates 15 



Completeness of Response on Registration Cards 17 



Accuracy of Planned Length of Stay 18 



Relationships of Visitor Characteristics, Other Variables to Rates . . 18 



Reasons for Not Registering 20 



Comparison With Results of Previous Studies 21 



GENERATION OF USE ESTIMATES 23 



Registration Station Data 24 



Ratio Estimation (Corrected Registration Information) 25 



Stratified Random-Sampling Estimation 26 



Regression Estimation 28 



Mechanical Counters 29 



Summary of Use Estimates 31 



Cost of Using Same Estimation Technique 33 



DISCUSSION /RECOMMENDATIONS 35 



Sample Design 35 



Best Estimation Procedures 36 



Extension of Results to Other Wildernesses 36 



Personal Interviews and Automatic Counters 36 



Raising Registration Rates 37 



Registration Systems 38 



LITERATURE CITED 39 



APPENDIX I — Primitive Area Registration Card 41 



APPENDIX II~Formula Used to Calculate Standard Errors for 



Estimated Registration Rates 43 



APPENDIX III— Variables and Notation Used in Study 44 



