240 RECORD OF DEEP- WELL DRILLING FOR 1905. 
Cambrian: Feet. 
Limestone with seams of gray and brown shale . 2, 100-2, 140 
Dark and light fine-grained limestone 2, 140-2, 250 
Hard coarse sandstone 2, 280-2, 348 
Granite 2, 348-2, 401 
Rig used, diamond drill. Elevat ion of well mouth, 925 feet. 
MONTANA. 
1038. Weil 40 miles northwest of Belton, Flathead County. 
[Well begun and abandoned in 1904. Authority, .i. ('. Leonard, driller. No samples.] 
The rocks penetrated by this well are faulted and folded, so it is impossible to say how 
times a single bed is repeated in the section given by the log. The rocks are of 
ceous age. 
Record of well in the SW. \ NE. \ sec. 12, T. 36, R. 21. Feet. | 
Wash, gravel, and bowlders 0- 
Sofl brown clay 18- 
!\ shale 30- 
Coal 45- 
Soft gray shale '. 47- 
1 1 . rd white limestone 100- 
Soft gr :\ 3hal( 110- 
jandstone; a little water 140- 
Hard whii e limestone 145- 
Hard gray sandstone; water 178- 
Hard gray limestone 182- 
Hard gray fine-grained sandstone 206- 
Soft r _ 225- 
Sofl gray sandstone 240- 
Hard gray gritty limestone 265- 
Coal 270- 
Soft black shale 274- 
Soft gray shale , 276- 
ILntl gray sandstone; more water 312- 
Sofl brown shale 320- 
( 5oal 358- 
Soft gray sha le : caves 360- 
Soft brown shale. 400- 
Soft blue shale. 450- 
Soft brown shale • 580- 
Coal 613- 
Sofl gray shale : caves. 615- 
Soft brown shale ; caves 665- 
Hard gray limestone 695- 
Hard gray sandstone; oil colors 723- 
Soft gray shale 746- 
Soft gray sandstone ; water 800- 8S 
Hard limestone. 820- 8£ 
Soft shale ; caves badly 850 8£ 
Soft gray sandstone 880 9( 
Hard gray limestone 905 m 
Soft gray shale 930 Sg 
Soft dark sandstone 970 9'. 
