658 



GEOLOGICAL SURVEY OF THE TEERITORIES. 



Elevations of points determined in fnis investigation — Continued. 



Names of determined points. 



State. 



■%< 

 a =^ 

 .2 o o a 



P-i| 



Keokuk, H. W. 1851, Mississippi Eiver 



Keokuk, L. W. (extreme) Mississippi Eiver 



Lawrence, K. P. R. W. & L. & L. branch junction 



Lawrence, K. P. E. W. depot track 



Leavenworth, city-datum, extreme L. "W. Missouri Eiver, Jan., 1867 



Leavenworth, H.'W. Missouri Eiver, (probably 1844) 



Little Rock, C. & F. E. E. depot ■ 



Louisville, L. W. in Ohio River, above falls* 



Lake Champlain, mean surface at Whitehall 



Lake Ontario, mean surface at Oswego 



Lake Erie, mean surface at Buffalo and Cleveland from 1844 to 1857 



Lake Michigan, mean surface since 1853 at Chicago 



Lake Huron - 



Manitou Springs, rock around the Manitou Spring 



HcKenzie junction depot 



Memphis, H. W. in Mississippi River previous to 1858, and is 100 feet 



above city-datum 



Mendota, C. B. & Q. R. R. depot 



Missouri Valley junction 



Mount Lincoln, extreme summit 



Mount Lincoln, cistern of barometer in 1873 



Montreal, summer water-level in river 



New Albany, depot of L. N. A. & C. R. R 



New Albany, L. W. 1857, Ohio Eiver 



Ogdeu, U. P. & C. P. E. E. depot track 



Omaha, base of levels of U. P. R. R., L. W. in Missouri River 



Omaha, H. W. in Missouri River 



Omaha, bed of river 



Omaha, bench heretofore called 966 feet above the sea 



Omaha, track at present depot in main line U. P. R. R 



Omaha, tops of east and west abutments of railroad-bridge '.. 



Oswego, mean surface of Lake Ontario 



Parkersburgh, L. W. in Ohio River 



Peoria, citv-datum, L. W. in Illinois River.- 



Peoria, C.,E. I. & P. Pu E. depot 



Pittsburgh, Union depot track 



Pittsburgh, city-datum, L. "W. in river 



Pittsburgh, H. W. 1852 



Pittsburgh, H. W. 1832 



Pike's Peak, exact summit 



Pike's Peak, top of TJ. S. G. & G. survey monument on east side of summit 



Philadelphia, city-datum 



Philadelphia, Pa. E. E. datum or base of levels 



Philadelphia, mean tide in Delaware Eiver 



Philadelphia, high tide in Delaware Eiver 



Philadelphia, low tide in Delaware Eiver 



Point Pleasant, very L. W. in Ohio River 



Portsmouth, L. "W. in Ohio River 



Port Huron, mean surface of Lake Huron 



Port Saruia, meau surface of Lake Huron 



PortSarnia, G. W. R. W". track 



Prairie Du Chien, probable L. "W. in Mississippi River 



Quinoy, C, B. & Q. E. R. depot , 



Quincy, L. W. 1854 Mississippi River 



Quinoy, H. W. 1851 Mississippi River 



Quebec, mean high tide in Saint Lawrence River 



Rock Island, C, R. L & P. depot track 



Rock Island, H. W. 1852 Mississippi River 



Rock Island, city -base 



Sioux City, E. E. track on levee 



Sioux City, bed of Missouri Eiver. 



Sioux Citj-, L. W. Missouri Eiver 



Saint d oseph, H. "W. Missouri Eiver 



Saint Louis, city directrix 



Saiut Louis, H. W. 1844, Mississippi River 



Saint Louis, H. W. 1658, Mississippi River 



Saint Louis, H. W. 1851, Mississippi River 



Saint Louis, L. W. extreme 



Saint Louis, ord. wa. Mississippi River 



Saint Louis, center of bridge on R. R. track 



Saint Louis, center of bridge on wagon-road. : 



Steubenville, L. W. in Ohio River 



Terre Haute, T. H. & Ind. depot 



Terre Haute, H. W. in Wabash River 



Iowa 



...do 



Kansas ... 



....do 



... do 



,-- do 



Arkansas . 

 Kentucky 



Colorado. . 

 Tennessee 



...do 



Illinois 



Iowa 



...do ; 



.. do 



Canada 



Indiana 



.-do 



Utah 



Nebraska 



...do 



..do 



...do 



...do 



...do .- 



New York 



West Virginia . 



Illinois 



...do 



Pennsylvania . . 



do 



...do 



...do 



Colorado 



do 



Pennsylvania . . 



do 



...do 



...do ...., 



...do 



West Virginia . 



Ohio 



Michigan 



Canada West .. 



...do 



Wisconsin 



Illinois 



....do 



....do 



Canada 



Illinois 



,...do 



...do 



Iowa 



...do 



....do ..., 



Missouri 



...do 



...do 



... do 



... do 



.-..do 



...do 



,...do 



...de 



Ohio 



Indiana 



....do 



502. 55 

 481.83 

 831. 52 

 845. 52 

 im. 89 

 788.89 

 309. 29 

 403. 75 

 100. 84 

 250. 00 

 573. 08 

 589. 15 

 539. 15 

 , 296. 92 



488. 21 



218.65 

 756. 22 

 , 019. 70 

 , 296. 66 

 , 187. 63 

 30.00 

 451. 75 

 379. 75 

 , 303. 30 

 977. 90 



996. 90 



904. 10 



997. 90 

 , 060. 40 

 , 049. 40 



250. 00 



573. 00 



439. 00 



464. 70 



746. 00 



699. 20 



729. 88 



732. 95 



, 146. 68 



, 124. 84 



8. 7.33 



6.913 



3. 349 



6.484 



0.214 



522. 00 



479. 00 



589. 15 



589. 15 



593. 15 



613. 00 



495. 22 

 472. 39 



493. 11 

 15.37 



568. 68 

 566. 68 

 546. 68 

 , 123. 35 

 , 094. 00 

 , 104. 00 

 820. 11 

 428. 29 

 435. 87 

 431. 57 

 431. 17 

 394. 48 

 408, 00 

 485. 80 

 510. 04 

 630. 77 

 504. 75 

 485. 45 



*This determination is not checked, and should not be considered of equal quality with the others. 



