J Jackrabbit [34], [100]-101 Javelina. See [Peccary] Johnson’s Trading Post, Elmo [82]-83 Juniper, alligator [20]-21
L Lechuguilla [28], [32], [84] Lion, mountain [101], [103] Lizard [34], [35], [38] Locust [49]
M Mammals, Age of [67]-69 Marfa [50] Mariscal Canyon [22], [61], [62], [64] Mariscal (Lindsey) Mine [15], [104]-5 Mesa de Anguila [18], [64] Mesquite, honey [77], [80] Millipede [33] Mosquitofish [74], [76]
O Ocotillo [29]-30
P Panther Pass [94], [102], [115] [Peccary] [32], [34], [45], [82] Plants [22], [26], [28]-32, [62], [74]-75, [99], [114]-15 Persimmon Gap [13], [66] Petroglyphs [85] Population [12]-13, [15], [18] Presidio [59] Pricklypear [14], [30], [31], [32]
R Raccoon [73] Rafting [122]-23 [Rainfall] [22], [53], [93] Ranching [18], [49], [50]-51 Rat, kangaroo [38]-39, [56] Rio Conchos [59], [64] Rio Grande [6]-22 passim, [59]-60, [90]; photos [8]-11 Rio Grande Village [60], [73]-77, [120] Roadrunner [38]-39, [121]
S Sam Nail Ranch [49] Santa Elena Canyon [22], [23] [62], [63], [64], [114]-15; photos, [9]-11, [58], [122] Scorpion [33], [124] Settlements [60] Shafter, William H. [86] Sierra del Carmen [18], [23], [64], [66] Snakes [36]-37, [38], [40], [124] Sotol [85] Swallows, cliff [56], [62], [63]
T [Tamarisk] [49], [52], [53], [62] Terlingua Abaja mine [75], [114] Tinaja, Ernst [42], [43], [48] Toad, Couch’s spadefoot [44] Tornillo Flat [68], [80]-81 Trees [20]-21, [22], [70], [93]-107 passim. See also [Cottonwood]; [Tamarisk] Turtle [61]