542 



BABOMETBIC ALTITUDES. 



Top-sill of Kansas shaft . . 



Top of Live Oak shaft ........ 



Mouth of Dean's tunnel ........ 



Mouth of Bagon's old " Empire shaft " . . . 



Top of Nevada City Sugar Loaf ....... 



Lower level of lava on Cement Hill, opposite Sugar Loaf . 

 Point on Cement Hill . . . . • ... 



Summit west of Cement Hill 



Average bed-rock at Peck's diggings, Native American Eavine 

 Mouth of tunnel at Eolfe and Stranahan's diggings, Long Tom Eavine 



reaches top of ridge 



n 



Point on continuation of ridge towards Bannerville, where lava was again seen 

 Bed of Deer Creek under Suspension Bridge, Nevada City .... 

 Level of tailings (October, 1870) in Deer Creek, at junction with Slate Creek 

 Knoll in bare field near McKune's house 



2890 



2840 



2G67 



2814 



3111 



2824 



3011 



2946 



2G31 



2G33 



Lower level of lava between Long Tom and Native American ravines, just above Peck's house 2704 

 Lower level of lava on ridge between Native American and Know Nothing ravines . 

 Point on ridge west of Nevada and Grass Valley toll-house, where the Marysville road 



2614 



2925 



2841 

 2808 



/ 



Toll-house, top of ridge between Nevada and Grass Valley 



Junction of lava and slate-rock 450 feet south of toll-house 



Mouth of tunnel in slate-rock at head of ravine, below the road from toll-house to Bannerville 2986 

 Top of hill above the tunnel ..... . . . . . , 3231 



. 3321 



2441 

 . 2094 



2936 

 . 2790 



2564 

 . 2837 



2490 

 . 2546 



2758 



Hughes's house 



Mouth of " El Dorado Boys " tunnel, one third of a mile west of Hughes's 

 Top of hill one eighth to one quarter of a mile S. S. E. from Crocker's 

 Bed-rock in Grass Valley Eavine at " Grass Valley Slide " . 

 Mouth of tunnel at upper end of Grass Valley Eavine .• . 

 Sill of shaft-house, Alta No. 2, Alta Hill, near Grass Valley 



ABOVE NEVADA CITY, ON WASHINGTON RIDGE. 



Determined in 1879. 



3108 



Blue Tent, Superintendent's house .......... 



Sailor Flat, B. D. Chadwick's house 3050 



Bed-rock at Gopher Point 



Eim-rock on spur between Sailor Flat and Last Chance Canons 



Mouth of old shaft in New York Canon 



"Washington, Griswold's Hotel, second story . . 



Bed-rock at Alpha ... . . . . , # 



2483 

 2759 

 3149 

 2633 

 3852 





