iii International Committee on Natural Zeolites

vi Highway map showing route and stops on Zeo-Trip '83

vii Preface

1 Guide to Selected Zeolite Deposits in Eastern Oregon, Southwestern Idaho,
and Northwestern Nevada

3 Field trip Stop 1. Durkee zeolite deposit, Durkee, Oregon

16 Field trip Stop 2. Castle Creek zeolite deposit, Oreana, Idaho

25 Field trip Stop 3. Sheaville zeolite deposit, Sheaville, Oregon

32 Field trip Stops 4 and 5. Rome zeolite deposit, Rome, Oregon

48 Field trip Stop 6. Lovelock zeolite deposit, Lovelock, Nevada

60 Field trip Stop 7. Tahoe-Truckee Water Reclamation Plant, Truckee, California

66 Discovery and Commercial Interest in Zeolite Deposits Examined During Zeo-Trip '83