bighorn, 28, 29; desert, 26; Rocky Mountain, 26, 98, 156 shells, 54 Shiprock, 37, 43, 51, 151, 163, 164 Shoshone, 124 Sibley, General Henry H., 13, 72, 73 Sierra Blanca, 36, 38, 51, 100, 138, illus. 139, 159 Ski Area, illus. 100, 133, 159 Sierra County, 36 de las Uvas, 158 Grande, 81 Arch, 43 Oscura, 161 silicified wood, 36, 38, 49 silt, 38,41, 48, 49 siltstone, 38, 51 Silurian, 41 rocks, 41 silver, 7, 13, 14, 23, 53, 132, 144, 146 Silver City, 20, 23, 24, 40, 72, 75, 86, 101, 143, 144, 148, 151, 161 Simpson, Lt. J. H., 90 Sipapu Winter Sports Area, 94-95 Sitting Bull Falls, 159 skipway, 151, illus. 153 skunk, 31, 95 Sky City (_see_ Acoma Pueblo) sloths, 55 Slough, Col. J. P., 92 Smokey the Bear, 99, 100 snails, 36, 41, 49 Snake Ranch Flats, 161 snakes, 18, 31, 36 Socorro, 8, 12, 13, 14, 19, 36, 37, 59, 72, 89, 99, 134, 139, 161 Mountain, 38, 140 sodium chloride, 149, 150 Sonoran desert, 26, 103, 109, 138, 143 Lower Zone, 19, 20 Upper Zone, 20, illus. 25 sotol, 20 South Truchas Peak, 38 Spain, 6, 9, 10, 11 Spanish, 5, 6, 7, 8, 9, 10, 11, 12, 15, 16, 18, 53, 54, 62, 63, 86, 89, 92, 95, 99, 104, 120, 122, 123, 125, 126, 128, 129, 130, 131, 132, 133, 135, 136, 139, 140, 141, 143, 148, 158, 162 dagger, 21 Peaks, 81 sparrow, 31 spider, 31, 44 Spirit Lake, 96 spodumene, 40 Springer, 134, 162 spruce, 16, 17, 18, 26, 100; blue, 22, 141; Engelmann, 22, 156 squash, 58, 84, 122 squirrel, 31, 32 Staked Plains (Llano Estacado), 132, 155, 159, 161 stalactites, 76, 78 stalagmites, 76, 78 state bird, 31 Capitol, 111 flower, 20 mammal, 28 State Highway 4: 106, 162 10: 98, 105, 156 12: 134 17: 95 23: 156 25: illus. 103 26: 71 28: 158 36: 157 37: 159 38: 163 44: 36, 134, 163 53: 157 68: 164 75: 136 76: 136 78: 101 90: 72, 144 94: 112 120: 109 137: 159 180: 101 370: 112 467: 111 State Monuments, 104-107, 155 (_see also_ under proper names: Abo, Coronado, El Palacio, Folsom Man, Gran Quivira, Jemez, La Mesilla, Lincoln (County Courthouse), Pecos, Quarai, Selden) State Parks, 104, 107-112, 155 (_see also_ under proper names: Alamogordo Lake, Bluewater Lake, Bottomless Lakes, Caballo Lake, City of Rocks, Clayton Lake, Conchas Lake, Elephant Butte Lake, El Vado Lake, Hyde Memorial, Kit Carson Memorial, Morphy Lake, Navajo Lake, Oasis, Pancho Villa, Rio Grande Gorge, Rock Hound, Santa Fe River, Storrie Lake, Ute Lake, Valley of Fires) staurolite, illus. 40 Stegosaurus, 49 Stein’s Pass, 158 Stewart Lake, 96 Stone Lions, 85 Storrie Lake, 104; State Park, 110