Download or read book Navajo Area, Dist. 18, Ft. Defiance Agency, Soil and Range Inventory written by United States. Bureau of Indian Affairs. Branch of Land Operations and published by . This book was released on 1977 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This survey was done to inventory the soil mapping units, potential productivity, actual productivity and livestock use patterns for the area known as the Grazing District Eighteen, a part of the Navajo Reservation.