242 



ASTRONOMICAL STATIONS 



E. 



Table of latitudes and longitudes of points on and near the houndary hetween the TL States and Mexico 



Station. 



Latitude north. 



DETERMINED. 



When. 



How. 



Long, west of 

 Grf^enwich, 





Camp Riley, (Major Emorj''s Astronomi- 

 cal Observatory.) 

 "East Base" Station 



• t tf 

 32 35 43.53 



1849 i Zenith telescope. .. 



"West Base" Station 



Monument No. 1, marking the initial 



point of boundary. 

 Monument No, 2, (Station 4) , „ 



Station No. 1, 



Station No. 7 



Boundary Peak (A.) 



32 35 42.33 



• / // 

 117 06 29.7 



DETERMINED 



When 



Observer. 



How 



39 34 33.10 

 32 31 59.63 



1849 Triangulation from 117 06 29.7 



Camp 118, '^San Pasqual) 



Camp 114j (near Warner's Ranch) 



Camp 112, (Vallecito) 



Camp 111 (Carrizo Creek) 



First Wells 



Station 46, (left bank of Rio Colorado, be- 

 low junction ofRio Gila.) 



New initial point of boundary on Rio 

 Colorado, 20 miles below the mouth of 



Rio Gila. 

 Monument (pj-ramid of ca?t iron) on So- 

 nera line, near the Colorado. 





32 32 25.2 

 32 33 11.8 

 32 34 (^.0 



32 36 35.9 



33 03 42.0 

 33 16 57.0 

 32 58 15.0 

 ^ 52 33.0 

 32 40 22.0 

 32 43 48 



Utiitobaquita 



Junction of Gila and Colorado 



Station No. 7, on Rio 

 Station No. 8, on Rio Gila 



29 01.48 



31 56 26.. 57 

 ^ 43 32.3 



2 43 56.8 



Camp 105, on Rio Gila, (Emorj''sRecon.) 



Station No. 9, on Rio Gila, (Emory's Re- 

 connaissance.) 



32 44 29.2 

 ^ 43 17 

 ^ 41 36.3 



Station No. 10, on Rio Gila 



Station No. 11, on Rio Gila,- 



Station No. 12, on Rio Gila - 



Camp 103, on an island in the Gila, 



(Emory's Reconnaissance.) 

 Station No. 13, on Rio Gila 



32 40 25.2 

 32 41 49.3 

 32 42 39.7 

 32 43 38 



Station No. 14, on Rio Gila ,• 



Station No. 15, on Rio Gila 



■ « 4 



Camp No. 101, on Rio Gila. (Emory's 

 Reconnaissance.) 



32 46 02.5 

 ^ 46 44.8 

 32 49 40.8 

 32 55 52 



32 55 56.4 



Station No. 16, on Rio Gila ,.... 



Station No. 17, of 1552, on Rio Gila, or 32 58 58.6 



station No. 42, of 1851. 

 Camp 99, on Rio Gila, (Emory's Recon- 



naissauce 



Camp 97, between 



and Coco Marl- 



copas Villages, (Emory-s Reconnaia- 



sance.) 



Camp 95, on the Gila, (Emory's Recon- 

 naissance.) 



Camp 93, on Rio Gila, (Emory^s Recon- 



32 59.22.0 



33 09.28.0 





1849 

 1849 



Camp Riley, 

 ....do 



1849 



Moon culminations. 



1849 



1849 

 1849 

 1849 

 1849 

 1846 

 1846 

 1846 



....do 



• ... do. 



do, 



...do 

 ,-..do 



117 09 03.23 

 117 08 29.7 



Sextant . 



do 



....do 



1846 do. 



« • • « • 



« • ■ 



1846 

 1851 



39 29 44.45 1855 



....do 



do 



117 03 31.7 

 116 53 05.9 

 116 44 17.6 



116 18 14.6 



117 06 42.2 

 116 41 56.2 

 116 23 53.2 

 116 00 22.2 

 114 00 28,0 

 114 39 58.2 



1849 

 1849 



Triangulation from 



Camp Riley. 

 ....do 



1849 

 1849 



W. H.Emory 



Do 



....do 





do 



.. ..do 



Ho, 

 Do, 



1849 do 





1855 



Zenith telescope... 114 48 44.53 



1849 

 1846 

 1846 

 1846 

 1846 

 1846 

 1851 





....do 



1 * 



Sextant 



.do 

 .do 



t I 



.do 



.do 



do 



1855 



1849 



1852 

 1852 

 1846 

 1852 



Triangulation from 

 initial poijU. 



Zenith telescope... 



Triangulation from 

 observatory. 



114 46 14.43 



1855 I Triangulation from 



mouth of Gila. 



1855 



Do. 

 Po. 



Do. 

 Do. 

 Do. 



Do. 

 Do. 

 Do. 

 Do. 



Lieut. Whipple, Top. 



Engineers. 

 Lieut. Michler, Top, 



Engineers. 



Lieut. Michler. 



Sextant 



» * * (lO •*%•••■ • ■«•■ # 



...do 



112 52 25.73 

 114 36 09.9 



114 25 33.7 

 114 19 35.7 



I ■ t uU *■»««» 



• «• « ■ 



114 17 32.5 



1855 

 1849 



Triangulation from 



initial point. 

 Moon culminations.] Capt. Jimenez 



1852 

 1852 



Triangulation from 

 observatory. 



By survey 

 ...do 



W. H. Emory. 



1852 

 1852 

 1852 

 1846 



... do 



.... do 

 ....do 

 ....do 



1859 

 1852 

 1852 

 1846 



114 13 20.0 

 114 00 33 

 113 58 15 



1852 By survey 



1852 

 1852 

 1852 



By survey 

 ...do 



....do 



... .do 



....do 

 ....do 



1852 



1851-S . . 



1846 



1846 



113 46 59 

 113 44 22 

 113 36 45 



Do. 



Do. 

 Do. 

 Lieut. Whipple, Top 



Engineers. 



Do. 



Do. 



Do. 



W. H. Emory. 



113 18 54 



113 11 13 



1852 

 1852 

 1852 



By survey 

 ...do 





1852 



...do 



.... do 



Lieut. Whipple 



Do. 



Do. 

 W. H. Emory. 



1851-2 .-..do 



Lieut. Whipple 

 Do. 



W. H. Emory 



. ... do 



na:s 



) 



Camp 91j on the San Pedro, near its 

 mouth, (Emory's Reconnaissance.) 



Camp 89, Disappointment Creek, (Emo- 

 ry's Reconnaissance.) 



Camp 87, on the San Francisco, about 

 two miles from its mouth, (^ Emory's 

 Reconnais^ancv^ .) 



33 04 21.0 1846 



33 05 40.0 



....do 



1846 



32 57 43.0 1846 



do 



33 14 54.0 



. ... do 



Do. 



Do. 



33 14 29.0 



1846 ....do 



1846 ...-do, 



Do 



Do 



I 



\ 



1 



Do 



Do 



