R 29W R 28W R27W : 
PMaiatou 
Sib House 
Weenaw Point 
AAO: 
The Eastern Sandstone 
KEWEENAW SERIES, | 
UPPER DIVISION 
Red Sandstone 
ut Isabelle 
Black Shale. and Grey Sandstone 
(Nonesuch Belt.) 
Red Sandstone and Conglomerate . 
(“The Outer Conglomerate”) 
LOWER DIVISION. 
Diabase and Diabase- amygdaloid, including 
at least one Conglomerate belt 
(‘The Lakeshore Trap”) 
Red Sandslone and Conglomerate 
(The Great Conglomerate "/ 
Diabase and Diabase-amygdalota, including several 
Sandstone belis (Marvine’s “Group C” of the 
nT 
Eagle River Section.) 
Diabase and Diabase- amygdaloid, including 
Conglomerales ae 
Lustre mottled Melaphyvrsand coarse grained 
Gabbros and iabases. (‘The Greenstone Group”) 
Diabase, Diabase amygdaloid and lustre-motlled 
Melaphyr, including anumber of Conglomerate beds 
Quartz porphyry ana Felstte 
Diabase, Diabase amygdaloid, Melaphyr. Diabase 
Porphyry ana Orthoclase-gabbro,including also ca 
ld Sa erate beds and beds orareas of Quartz porphyry 
and Granitic- porphyry. / "Bohemian Range Group”, 
: Narrow Conglomerate belts where actually known to exist oie 
- are marked inred lines, the numbers given them are 
those used by Pumpelly and Marvine. 
safe Dip and Strike 
28 Mines 
i I 
Lines of Geological Cross-section. 
A. Hoen & Co. Li) Baltimore 
