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c. 



ALTITUDES OF POINTS IN THE AUEIFEROUS GEAVEL REGION OF 



THE SIERRA NEVADA, IN FEET, ABOVE THE SEA-LEVEL. 



■ 



TUOLUMNE COUNTY. 



Street level, front of llathaway's drug-store, Columbia 



Street level at 1 tot-office, Shaw's Flat 



Top of Table Mountain, above Valentine's shaft . 



Top of Table Mountain, about a mile and a half, S. 45° W. (magnetic), from Columbia 

 Top of Table Mountain, about a mile and a half, S. 65° W. (magnetic), from Columbia, 



left bank of Stanislaus River 



2137 

 2111 

 2214 



2247 



23G9 



CALAVERAS COUNTY. 



Lowest water in Stanislaus Eiver, at Abby's Ferry 



W. H. Robinson's house . • 



Summit of Table Mountain on stage road from Vallecito to Abby's Ferry . 

 Summit of trail over Table Mountain from Murphy's to Pine Log 

 Lowest wheel at shaft, Douglass Flat 



Summit of Bald Mountain 



Floor of hotel at Altaville . 



Lower floor of hotel at Angel's 



Suirfmit of hill of volcanic breccia, about two miles north (magnetic) of Vallecito 

 Street level front of Sperry's hotel, Murphy's 



879 

 1761 

 2175 

 2515 

 1986 

 1801 



1577 

 1394 



2569 



2191 



AMADOU COUNTY. 



J. D. Mason's house, Buena Vista, Jackson Valley 

 Summit of Jackson Valley Buttes 



Arcade House, lone City . . . 



Bed-rock, south end of Tunnel Hill, near Jackson 



Bridge over Mokelumne Eiver, between Jackson and Mokelumne Hill 



295 

 829 

 310 

 1418 

 676 



