

YUBA, SIERRA, AND PLUMAS COUNTIES. 



549 



Bed-rock at Bunker Hill 



Bed-rock at Loganville 



Sierra City, Yuba Gap Hotel, second story 

 Mouth of 1001 tunnel .... 



Cabin at Blue Gravel claim, above Sierra City 



4700 



3886 

 4188 

 5938 

 5938 



YUBA, SIERRA, AND PLUMAS COUNTIES. 



POINTS NORTH OF THE NORTH YUBA RIVER AND SOUTH OF THE DIVIDE BETWEEN THE YUBA 



AND THE FEATHER RIVERS. 







(a.) Near La Porte and Gibsonville. 

 Strawberry Valley Hotel . . . . . . . . 



Low bed-rock at southwest end of Secret Diggings, near La Porte .... 



Bed-rock at Illinois Hill, at base of lava . . . . . ... 



Top of gravel at Illinois Hill ••........ 



Point near lowest bed- rock at south end of La Porte mines . 

 Bed-rock near lower end of Spanish Flat 



La Porte, Union Hotel, second story 



Bed-rock near bank at upper end of La Porte mines ...... 



Summit of ridge between La Porte and Little Grass Valley, on line of projected tunnel 

 Big boulder on road from La Porte to Gibsonville ....... 



Summit on road from La Porte to Gibsonville ....... 



Point on road estimated to be fifteen feet below mouth of Go- Ahead shaft . 

 Gibsonville Hotel, first floor •••••..... 



Average bed-rock at Mt. Pleasant mines ......... 



Mouth of upper Hepsidam tunnel ••••..... 



Ridge above Hepsidam, between Pilot Peak and Bunker Hill 



Top of ridge between Gibsonville and Little Grass Valley, on trail to Monitor shaft 



(b.) On Si. Louis Ridge. 

 Bed-rock at Council Hill 



* • • • • 



Bed-rock at Fairplay 



Lowest bed-rock at Pock Creek outlet of mines at Scales's Diggings .... 

 Ditch crossing near head of Pock Creek, on road from Scales's Diggings to Poverty Hill . 



Mouth of shaft below Poverty Hill 



Top of bank at south end of Poverty Hill 



Bed-rock at north end of Poverty Hill 



3640 

 4828 

 4916 

 4993 

 4928 

 4756 

 4993 

 5077 

 5500 

 5168 

 5583 

 5435 

 5500 

 5560 

 6000 

 6750 

 6281 





Bed of Slate Creek at Poverty Hill trail 



3963 

 4133 

 4253 

 4718 

 4553 

 4603 

 4563 

 4000 



