Page 469 - calmining1890
P. 469
Ficp. CLOSE OF FIRST PERIOD
4000 r- ::= ^\ Jvs5
3000
2000
J000
CLOSE OF SECOND PERIOD
4000
3000
2000
1000
THIRD PERIOD
4000
FORESTJfl LLJDiyiDE
TOLCANfC CAP
^2 k
3000 V
3 !> BED ROCK
2000
1000
SeaLevel
3 miles
