EXPLORATIONS FROM A. D. 1843 To A. D. 1852. 51 
ing a plateau at the head of the Rio de Chaco. This valley they followed down to the ruins 
of the pueblo Weje-gi. From here they travelled, somewhat north of west, to the heads of 
the Tune-cha creek. Crossing the Sierra de Tune-cha through Pass Washington, they came 
upon the Rio Negro, which flows into the Cañon de Chelly. Thence turning northward, they 
passed around the eastern end of the Cafion de Chelly, and, making a considerable detour to 
the north, struck the Rio de Chelly just below the mouth of the cañon. 
Here they turned southeast and travelled along the southern border of the Cañon de Chelly. 
Striking a little east of south over the Sierra de Laguna, they next descended into the Cañon 
Bonito, which they followed some thirty miles. Crossing the head of the ‘‘ Rio Puerco of the 
west,’’ they then struck the Rio de Zufii, at the Indian pueblo of that name. Here, turning 
eastward and following the Rio de Zufi to the Ojo Pescado, they crossed the Sierra de Zuñi 
(or Madre) by the Zuñi Pass, descended the Cañon del Gallo to the spring of the same name, 
and travelled down the Rio Rito or San José, passing, a few miles south of Covero, to the 
pueblo de Laguna. Thence they continued down the same valley for about fifteen miles, 
when they struck northeast, and, crossing the Rio Puerco about twelve miles above the mouth 
of the San José, reached the Rio Grande at Albuquerque, where the expedition was disbanded, 
on the 22d September, 1849. Lieutenant Simpson proceeded to Santa Fé, where his report 
and map were prepared. l 
; EXPEDITION OF CAPTAIN R. B. MARCY, FIFTH INFANTRY, 1849. 
The report of Captain Marcy forms Senate Ex. Doc., No. 12, 1st session 31st Congress, and 
is accompanied by a map, drawn on a scale of an inch to thirty-six miles, embracing the 
country from the Arkansas river, south, to the 31st parallel, between the 94th and 108th 
meridians. Captain Marcy went from Fort Smith to Santa Fé, over the route surveyed by 
Lieutenant Simpson, Topographical Engineers. Of the remainder of his journey he prepared a 
map from notes taken by his command. He was not supplied with instruments for astro- 
nomical observations; his distances were measured with an odometer. 
From Santa Fé he travelled south along the valley of the Rio Grande, and over the Jornado 
del Muerto to Doña Ana. Turning east, he struck Lieutenant Bryan's trail just before he 
entered the Hueco mountains, and followed it to the Pecos, passing through the Guadalupe 
Pass. Proceeding down the Pecos river to the Emigrant Crossing, he struck, northeast, over 
an unexplored country to Preston, on Red river. His route passed through the White Sand 
hills, near the Big Springs of the. Golatado, QUE. the northern sources of the clear fork of the 
Brazos, and of the north branches of the T 
On his return from the Pecos to Beit TR Harrison separated himself a short 
distance from the command, and was killed by the Indians. 
EXPEDITION TO GREAT SALT LAKE, BY CAPTAIN H. STANSBURY, TOPOGRAPHICAL ENGINEERS, 1849-50. 
The report of this expedition forms Senate Ex. Doc., No. 3, special session, March, 1851, 
and is entitled ۲ Exploration and Survey of the Valley of the Great Salt Lake of Utah, including a 
reconnaissance of a New Route through the Rocky Mountains. By Howard Stansbury, on 
Corps Topographical Engineers, United States army. Philadelphia: Lippincott, Grambo & Co 
1852." It is accompanied by a map of the routes from the Missouri river to the Great Salt 
lake, on.a scale of 1 to 1,000,000, (about an inch to sixteen miles,) and by another of the Great 
Salt lake and vicinity, on a scale of 1 to 240,000, (about four miles to an inch.) 
8 
