38 
and the high-angled structures of the district. They are, therefore, sub- 
sequent to the main orogeny of the region which is thought to be Lara- 
mide. 
A system of dykes of basalt cuts all the other rocks of the district. 
These are thought to be of fairly late date. 
FOSSIL LOCALITIES AND FAUNAL LISTS 
The localities, and the fossils found there, are here listed according to 
the known or presumed ages of the strata. Individual localities are dis- 
tinguished by numbers and these numbers on the accompanying index 
map (Figure 1) indicate the positions of the various fossil-bearing locali- 
ties. 
PENNSYLVANIAN 
(1) West side of Bear mountain, at an elevation of 2,000 feet, Ij miles 
due east of the Harrison Hotsprings hotel. 
Large crinoid stalks — Melocrinidae? 
Small crinoid stalks — Batocrinidae? 
(2) West shore of Harrison lake, 2j miles from Harrison River point. 
Conglomerates. The fossils occur in pebbles of limestone derived from a 
Pennsylvanian formation. 
Producliis cf. clarkei Ischemychew 
Crinoidea, several species 
JURASSIC 
(3) West shore of Harrison lake, 1,820 yards north of Harrison River 
point. 
Rhynchonella sp. 
Enlolium volcanicum Crickmay 
Cylindroteuthis themis Crickmay 
(4) East shore of Echo island, 1,860 yards north of the southeast 
comer. 
BeUmnites sp. 
(5) South end of the first small islet southeast of Echo island. 
Belemnites sp. 
Pelecypoda, various unidentifiable forms. 
(6) Northeast side of the second small islet southeast of Echo island. 
Belemnites sp. 
(7) West shore of Harrison lake, 600 yards south of the mouth of 
Deer creek. 
Inoceramus ? sp. 
(8) South shore of Harrison river on the west side of a small point 
150 yards east of V. Macdonald's house, or 2\ miles from Harrison River 
point. 
LiUoettia sp. — crushed specimens of slightly earlier date than the described species 
