

552 



BAROMETRIC ALTITUDES. 



Bed-rock at northwest end of Orr's mine, Hungarian Hill .... 



Bed-rack at foot of high gravel bank in upper part of ravine, near trail to Quincy 



Summit on trail from Hungarian Hill to Quincy, near reservoir 



Quincy, Plumas House, second story ........ 



Crest of ridge above mines in Elizabethtown Flat ...... 



Mouth of Keller's Deadwood tunnel, on Little Blackhawk Creek . 



Mohawk Valley ; Knott's ranch 



Top of hill, near Babb's house, on road from Knott's ranch to Jamison City . 



Jamison City, Porch of Miners' Home 



Mohawk Valley, Mrs. King's, second story ....... 



Cabin at Andrew Jackson's mine . 



•••••• 



Sierraville, Globe Hotel ...... 



3698 

 4003 

 4280 

 3383 

 3750 



3500 



4325 

 4960 

 4800 

 4450 

 5025 

 4950 



BUTTE AND YUBA COUNTIES. 



















POINTS IN THE NEIGHBORHOOD OF OROVILLE. 



Oroville, McDermott's drug-store, — assumed altitude 



Boston Banch ... . . . 



Summit on stage road between Boston Banch and Forbestown .... 



Forbes town Hotel ........ 



Brownville, Post-office 



Morris Bavine, W. C. Hendricks's house . . 



Point on Hendricks's ditch, near head of Good's Bavine, northerly from Mt. de Oro . 



Base of basaltic cap near divide between Schermer's and Morris Bavines 



Bed-rock at Gregory's claim, Oregon gulch 



Base of basaltic cap at cave, head of Coal Canon .... 



Point on stage road near Hutchinson's house where road crosses upper end of Cherokee 



Flat mines .... 



Top of Sugar Loaf, Cherokee Flat 



Base of basaltic cap at Sugar Loaf 



Top of highest bank at Spring Valley mines . 



w 



lop of pink gravel, below Sugar Loaf .... 



Low bed-rock near blacksmith shop in Spring Valley mines . 

 Cherokee Flat, Spring Valley House, second story . 

 Bed-rock at St. Clair Flat ....... 



Top of first bench above Welch's diggings 



150 

 1500 

 3060 

 2625 

 2125 

 524 

 964 

 1084 

 1033 

 1049 



1300 

 1647 

 1550 

 1460 

 1377 

 1087 

 1187 

 765 

 935 



H 



