174 



SONORA LINE — MONUMENTS. 



IV, 



hie showing the triangulated distances, in metres and yards, between the different monu- 

 of the survey of that portion of the houndary line running from the Initial Point, on the 

 do river, to the intersection of the parallel 31° 20' 00" north latitude^ and the meridian 



111° 00' 00 



// 



'st of Greenwich. 



Triangulation by Lieut. N. Michler, Mr. A. C. V. Schott, and ScHor A. Diaz 



From Initial Pointj on the Colorado river, to Monument I 



T to Monument II 



Monument 

 Monument 



II to Monument III 



Monument III to Monument IV 



Monument I V to Monument 



V 



Monument 



V to Monument VI 



Monument VI to Monument VII 



Monument VII to Monument VIII 



Monument VIII to Monument IX 



Monument IX to Monument X 



X to Monument XI 



Monument 



Monument 



XI to Monument XII 



Monument XH to Monument XIII , , 



Monument XIII to Monument XIV 



Monument XIV to Monument XV 



Monument XV to Monument XVI 



Monument XVI to Monument XVII 



Monument XVII to Monument XVIII .. •• 



Monument XVIII to Monument XIX , 



Monument XIX to intersection of parallel 31° 20 

 N. latitudCj and meridian 111° west of Greenwich. 



/ 



Total length of Une 



Metres. 



964.62 

 3171.12 



839.81 

 72170.00 

 44393 . 34 

 57G33.13 

 13203.04 



877-61 



17298 . 65 



23405.35 



4180.00 



2793.97 

 44698.76 

 18986.27 

 20493.60 

 14592.57 



3519.11 

 27962.77 



5261.97 



409.19 



Yards. 



1054.9214 



3467.9793 



907.4913 



78926 . 079O 



48549.1515 



63028 . 3523 



14439.0215 



959 . 7660 



18918.0354 



25596.4044 



. 4571 . 3040 



3055.5230 

 48883.1629 



28973.7560 

 15958.6301 



3848.5458 

 30580.4599 



5754 5609 



Remarks. 



I; in Riv'cr bottomj near the bank. 

 II, Iron monument, on desert. 



Monument 

 Monument 

 Monument III, erected on desert 



Monument 

 Monument 

 Monument 



IV, Sierra de las Tinajas Altas, 

 V, Sierra del Tale. 

 VI, Sierra del Agua Dulce. 



Monument VII, near Rancho de Quitohaqiiita 

 Monument VIII, near Rancho de Quitohaquita 

 Monument 



Monument 



IX, Sierra de Sonoyta. 

 X, west ridge of Sierra de la Nariz. 



Monument XI, on the wagon road from Cohotato So- 



Mouument 

 Monument 



noyta. 

 XII, cast ridge of Sierra de la Nariz. 

 XIII, on the road from Tubac to Cobota. 



20763.6403 Monument XIV, Sierra de la Union. 



447.4957 



382844.87 



418684,2807 



Monument XV^, Sierra del Pozo Verde. 

 Monument XVI, near Ojos de los Granizos. 

 Monument XVII, Sierra de Sonora. 



Monument XVIII, Sierra de los Pajaritoa. 

 Monument XIX, Sierra de los Pajaritos. 



Monument (intersection of meridian and parallel) Sierra de 

 loa Pajaritos, 



