\) \ \ I \ i, \ \ m i \ i R \ i RKHOl RCKfl I N 1904. !"' 
•ill iin\ will be found «'iil\ in rare dikes. The whole rock succession 
i , i,. ,i\ folded, and the arkoses as well as I li<' slates show clem agel 
which i . however, much more porfectlj developed in the slates. 
In , i,. in-' Kenai Peninsula Prom Resurrection Bay <>n the south to 
Sunrise on the north il was found that, aside from Local variations! 
the general strike of the Sunrise series ranges from about N. to 
\ {) i North of L\irnagain Arm a decided difference was observed! 
for there the strike of the bedding varies from N. l."> E. to N. 70 K. 
In that portion of the Kenai Mountains between Seward and Sunl 
the bedding is often obscure, usually having the same strike as 
the cleavage. On the north shore of the arm. however, the bedding] 
and cleavage frequently do not have the same strike, and where thisJ 
is tin 1 case tln> cleavage on both sides o( tlm arm corresponds more] 
nearly in strike than does tin 1 bedding. Faults are frequent, but the 
amount of the displacement is usually difficult to determine. 
Immense deposits ^( gravel occur at a number oi localities, but ar 
especially noticeable in the valleys ^( Sixmile Creek, Resurrectiod 
Creek, and Kenai River, The flat topped benches have an elevation 
o\ nearly l,ooo feet above sea level around the lowerend oi Lake 
Kenai, and the same elevation was observed in the valleys of the 
streams mentioned. The bench gravels show a thickness o( L00to2(M 
feet in the upper valleys, where the\ have been cut through by the 
streams. 
E\ idences oi a former period o( glacial activity are seen on all side 
in broad bottomed U-shaped valleys, polished roek surfaces, an< 
transported bowlders. The shores of Turnagain Arm afford freques 
proof y'( ice action in glacial markings and striated pebbles. Hanging 
\ alleys are not uncommon. Rounded hilltops, oxer a thousand fee 
above sea level, on the north side o( Lake Skilak. are beautiful! 
smoothed and grooved, while the gravels of the lake shores contain ai 
abundance of granite fragments. Such fragments are not found oi 
any o( the streams of the present drainage and must have come from 
some locality to the north. This glaciation is due in part to the actio 
of small ice masses like those that now occupy the mountain valleys 
but is perhaps in greater degree attributable to the movements of 
far more extended ice sheet which reached down from the north. 
GOLD. 
Practically all the gold produced in the Turnagain Arm field i 
k gi . • els. In one or two places, however, attempt 
2T mad . lop mines in vein deposits. The gold occui 
fore, will be classified and described as placer and lod 
- - In this brief account no mention will be made of stream 
e not producing during the past season. 
