Pace Terra 14-20 Tertiary drainage route...... 139 Tertiary gravels, may yet be dis- covered... 139 Tetsa River, Mississippian........ 31 Thaynes group, correlation with. . . 41 Thibert group, correlation with. . . 59 Thorsons Landing, ochre......... 147 Three Forks Creek, roof pendant. . 62 AME COMSERNIN, Coc coo os cecdeues 158 INGEKGL ONMIIAMIO M6 ob cnc cwovonao- 36 Toad River, Triassic near mouth of Upper Cretaceous east of... 0... 101 Triassic seas and the Arctic sea... 129 Trojan coal seam.+.............. 156 FMMMDAES cobs cncodeuocces ee osc 158 AMONG WW sco cc oe coon aoc 147 Tropites. . 93, 55, 59, 60 Trutch C reek, U pper ‘Cretaceous. . 98 Tufa, calcareous eo ol hoes 148 Turnagain River, Tertiary........ 110 Tuskoola Mountain, Smoky group. 103 diwanecoaliscans sees enema 169 ANALY SOS it. nae eine ree 170 Tworidge Mountain, Lower Cre- tAGCOUS sa eres ciency See 82, 84 Upper Cretaceous tobe eee ee 97 Tyaughton group, corre lation... 58 Unconformity, pre-Silurian. . 127 Oniiordowlin gia ere ee Upper falls, Sikanni Chief River, Bullhead’eroupse ssc ee 70 Upper Blairmore formation, cor- relation. . : Upper Cretaceous, source of sedi- NIMS Olaocoocsossucnacavces 2 36 Pace Upper Fork of Pine River, structure 124 Upper Greensand, E ngland Shabiens fits 99 ‘Upper shal 102 Upper Triassic seas.............. 129 ‘Varicoloured beds’, correlation... . 95 Vine Creek, Triassic of........... 58 Walton Creek, Lower Cretaceous. . 82 AW END FAHOWIY coc ce ceo ab occ eee 106 Wapiti Lake, Triassic near........ 58 Wartenbe (Table) Mountain, U ‘pper Ty Cretaceous.::-... SAMA Oh csocccscccasousses Wasatchites fauna Waterpower site Watimocenas............ E Watinoceras cf. coloradoense : Wedge and Protection claims..... . 145 Western Triassic belt, structure. . . 122 West Glacier Spur, Triassic of..... 49, 55 West Grayling anticline. ......... 124 Wheaton Creek, igneous rocks... . 62 Whitehorse member, correlation WAG rahe ceva cea een eae 41 Wicked River Valley, Devonian. . . 28 Williams, Daniel 142 Willow Creek, coal on 188 WhlsonteAlicen Bb): eee 30, 33, 34 Woodbine formation, correlation. .. 100 Woodside formation, correlation. . . 36 Young Creek, Lower Cretaceous east of. ...