| OCR Text |
Show Hualpai Plateau Coconino Plateau Mogollon Plateau Defiance Plateau Zuni Mountains Eastern border lands of Colorado Plateau Upper Colorado River Valley Gunnison Valley . . . . San Juan Mountains Western border lands of Colorado Plateau Arizona Mountain Province Prescott Area .... Mazatzal and Sierra Ancha Mountains Verde Valley .... Recent volcanic areas San Franciscan volcanic field . White Mountain volcanic field Uinkaret and Shivwits Plateau volcanic fields Basin and Range Province Arizona- Nevada corner . Desert ranges south of Lake Mead East- west trending ranges of middle western Arizona .... Southeastern Arizona ranges . Southwestern Arizona ranges Colorado Delta and Salton Sink Plan recommended for development of certain recreational features in the Plateau Province ............ 41 42 43 43 43 43 44 44 45 46 47 47 47 48 48 48 49 50 50 51 51 52 52 53 53 54 CHAPTER III PLANT AND ANIMAL LIFE Recreational value of plants and animals Plants .... Unity of plants and animals Animals Status of plant and animal life Original conditions Changes caused by man Farming Grazing Importance of topsoil Difference between natural and man- caused erosion Meaning of soil erosion to human welfare Hunting, fishing, and trapping Stream pollution Remedial measures so far taken Regulations Artificial propagation Refuges .... 56 56 56 56 57 58 58 61 61 62 63 63 65 66 67 67 67 67 68 VII |
