VI 
CONTENTS. 
Page. 
G 24.—Report of an exploration from Fort Benton to the Flathead camp beyond the Muscle Shell river, and thence 
by the southern Little Blackfoot river to the St. Mary’s village, by Lieutenant John Mullan, U. S. A. 
Bitter Root Valley, January 20, 1854._... 301 
G 25.—Report of an exploration from Cantonment Stevens to Fort Hall and back, by Lieutenant John Mullan, U. S. 
A.: with his route up the St. Mary’s, to and up the Jefferson fork of the Missouri. Bitter Root Valley, 
W. T., November 19,1853....... 3 x 9 
G 26.—Report of route from Cantonment Stevens to Fort Benton and back, by Lieutenant John Mullan, U. S. A. 
Bitter Root Valley, April 2, 1854............. 349 
H 27.—Itinerary of the route from St. Paul to Fort Union. 352 
H 28.—Itinerary of the route from Fort Union to Fort Benton... 358 
H 29.—Itinerary of the route from Fort Benton to Cadotte’s Pass, the Jocko river, and Clark’s fork, to Wallah- 
Wallah, with an estimate of the time, labor, and cost of making a practicable w'agon-road. 360 
II 30.—Itinerary of the route from Hell Gate over the Coeur d’Alene mountains to the Cceur d’Alene mission, and 
thence to the intersection of the route given in H 29..... 365 
II 31.—Itinerary of the route from Fort Benton, by the northern Blackfoot trail, to Fort Owen... 369 
H 32.—Itinerary of the route from Fort Owen, by the Jocko river, Flathead lake, and Marias Pass, to Fort Benton... 371 
H 33.—Itinerary of the route from Fort Owen by the southern Nez Perces trail to Wallah-Wallah. 374 
II 34.—Itinerary of Captain McClellan’s route........ 377 
I 35.—Report of Lieutenant S. Mowry, U. S. A., to Captain G. B. McClellan, United States engineers, of the 
meteorology of the Cascades. Olympia, W. T., February 10, 1854. 389 
I 36.—Report of the meteorology of the route, taken by Lieutenant C. Grover, U. S. A., from Fort Benton to Wallah- 
Wallah. 396 
I 37.—Report of Mr. A. W. Tinkham of the snows of the Rocky mountains, in November; of the Bitter Root, in Decem¬ 
ber; and of the Cascades, in January. Washington, D. C., August 12, 1854.. 399 
I 38.—Letter of the Hon. H. M. Rice, and extracts from letters of Hon. H. II. Sibley and A. Culbertson, Esq., as to the 
winter climate of the region extending from the Mississippi to the Rocky mountains. 400 
J 39.—Report of Mr. George Gibbs to Captain McClellan on the Indian tribes of the Territory of Washington. 
Olympia, W. T., March 4, 1854 ..... 402 
J 40.—Reportof Lieutenant John Mullan, U. S. A., on the Indian tribes in the eastern portion of Washington Territory. 
Bitter Root Valley, W. T., November 18, 1853. 437 
J 41.—Reports of Mr. James Doty on the Indian tribes of the Blackfoot nation. Fort Benton, December, 1853. 441 
J 42.—Report of Mr. J. M. Stanley’s visit to the Piegan camp at the Cypress mountain. Washington, D. C., January 
19, 1854 . 447 
Letter of the Secretary of War to Governor I. I. Stevens. Washington, July 25, 1854... 449 
Letter of Governor I. I. Stevens to the Secretary of War, with statement of partial results of the exploration, latitudes 
and longitudes, and barometric and meteorological observations. Washington, D. C., August 4, 1854... 450 
Report of George Gibbs on a reconnaissance of the country lying upon Shoal Water bay and Puget sound. Olympia, 
W. T., March 1, 1854. 465 
Report of George Gibbs upon the geology of the central portion of Washington Territory. Olympia, W. T., May 1, 
1854. 473 
Final report of Lieutenant C. Grover of his examinations from Pike lake to Fort Union. 486 
Final report of Lieutenant C. Grover of his survey of the Missouri from the Great Falls to the mouth of Milk river... 489 
Final report of Lieutenant C. Grover of his examinations on a trip from the headwaters of the Missouri to the Dalles 
of the Columbia...-... 498 
Letter of Governor I. I. Stevens to the Secretary of War, transmitting reports of Lieutenant John Mullan, U. S. A. 
Olympia, W. T., January 3, 1855 ..... 515 
Report of Lieutenant John Mullan, U. S. A., of his examination of the country from the Bitter Root valley to the 
Flathead lake and Kootenay river. Bitter Root Valley, May 8 , 1855 .... 516 
Report of Lieutenant John Mullan, U. S. A., of his exploration from Cantonment Stevens to Fort Dalles through the 
passes and lateral valleys of the Rocky mountains, including a pass over the Coeur d’Alene mountains. Fort Van¬ 
couver, November 12,1854.............— .. 527 
Letter of Governor I. I. Stevens to the Secretary of War, advising the condition of the survey, and transmitting reports 
of Lieutenant John Mullan, U. S. A., and Mr. George W. Stevens. Olympia, W. T., January 3, 1855. 537 
Report of Lieutenant John Mullan, U. S. A., on a pass in the Rocky mountains, and a pass through the Bitter 
Root mountains. Olympia, W. T., December 12, 1854....... 538 
Report of Mr. George W. Stevens submitting a plan and estimate for determining with accuracy the latitudes and longi¬ 
tudes of the principal stations on the route near the forty-seventh and forty-ninth parallels. Olympia, W. T., De¬ 
cember 21, 1854... 540 
Letter of Governor I. I. Stevens to the Secretary of War, transmitting two reports of Mr. James Doty. Olympia, W. 
T., April 20,1855..... 542 
Report of Mr. James Doty of a survey from Fort Benton, near the Great Falls of the Missouri, along the eastern base 
of the Rocky mountains, to latitude 49° 3J' N. Olympia, W. T., December 15, 1854........... 543 
