1841.—Tenino Mounds.—Described.—(Wilkes' Narrative, vol. 4, page 415).
1848-9.—Territorial Government.—Granted, covering all the original Oregon.—(Barrow's Oregon, page 335. Encyclopædia Britannica, vol. 17, page 825. General Laws of Oregon, page 52).
The Dalles.—Stone pavement, or trough, or gutter.—(Pacific States, vol. 23, page 44).
1788.—Tillamook Bay.—Known as Murderers' Harbor and Quicksand Bay.—(Pacific States, vol. 22, pages 188 and 198).
1806.—Tillamook, or Killamook Head.—Called by Clarke, Clarke's Point of View.—(Pacific States, vol. 22, page 164, and vol. 23, page 58).
1792.—Tongue Point.—Named by Broughton.—(Vancouver, vol. 3, page 86).
1805.—Called by Lewis and Clarke, William.—(Pacific States, vol. 23, page 53).
1834.—Townsend, John K.—A member of the Philadelphia Academy of Natural Science, arrived at Vancouver with Wyeth, Sept. 16th.—(Townsend's Narrative, page 169. Pacific States, vol. 23, page 577).
Trout Lake.—Near Mt. St. Helens. Known among Indians as Qual-i'-as, meaning Trout.
1806.—Umatilla River.—Called by the Indians, "Youmalolam."—(Pacific States, vol. 23, page 64). Named for the Umatilla tribe of Indians.