536 



BAKOMETRIC ALTITUDES 



Mouth of Wolverine tunnel, above Independence Hill . 



Bed-rock, Metcalf s claim, above Independence Hill . 



Crest of ridge about a quarter of a mile northeast of Independence Hill 



Rim-rock, Roach Hill ......... 



Strawberry tunnel, just above Monona Flat, Indian Canon 

 Crest of main ridge, just south of Green Valley gorge . . 

 Mouth of Nabor's tunnel, Green Valley gorge . . 



Bed-rock, spur next northeast of Green Valley gorge . 



3025 

 2943 

 3469 



3037 



31G0 

 4125 



3727 

 3881 





POINTS NEAR AND ABOVE DAMASCUS, SOUTH OF THE NORTH FORK OF THE AMERICAN RIVER. 



Mouth of Humbug Canon 



Hotel at Damascus . 



Mouth of Mountain Gate upper tunnel, Damascus .... 

 Mouth of tunnel, Cement Mill claim, Damascus ..... 



Bed-rock, hydraulic pit, Damascus 



Crest of main ridge, over Mountain Gate tunnel, just back of Damascus 



Highest bed-rock in road, half a mile northwest from Damascus 



Bed-rock, on ditch a mile and a half above Damascus 



Forks House, above Damascus .......•••• 



Forks of road on crest of ridge immediately back of the Dam claim, a mile and a half from 



Forks House . . . . • • . • 



Mouth of tunnel, Dam claim .....•••••• 



Crest of ridge between Forks House and Hog's Back . . . . • • • 



Secret House ........•••••• 



Summit of Secret Hill .......••••• 



2080 

 4006 

 38G7 



3827 



3922 



4641 

 4073 

 4177 

 4764 



4560 

 3671 

 5436 

 5423 

 6536 



GOLD RUN AND NEIGHBORHOOD. 



Level of tailings on North Fork of American River, near outlet of Indiana Hill mines, 



October, 1870 ........••••• 



Summit of hill between cement mill and Canon Creek . . 



Bed-rock at entrance of tunnel at cement mill, near Indiana Hill ..... 



Highest pressure box, Indiana Hill mines, northwest side 



Point on bed-rock spur, one eighth of a mile S. S. E. from Fiddler's ranch ; base of Cold 



Spring Mountain, lava and cemented sands 



Top of Cold Spring Mountain 



Top of old '49 shaft, Potato Ravine . 



Edge of rim-rock in Rattlesnake Ravine, near Gold Run 



1418 

 3099 



2792 



3179 



3284 

 3679 

 2956 

 3200 









