270 GEOGRAPHICAL MEMOIR. 
The rocks are conglomerate, but one part of it is basalt. One of the rocks between the 
island and Cape Flattery rises considerably above the water. It was called by Duncan the 
Pinnacle Rock, and was said to be that famous rock column which is mentioned in the old 
reports on the pretended discovery of Juan de Fuca, and which was considered to be the very 
landmark of the Strait of Juan de Fuca. Duncan gave a view of this rock, and made it so 
column-like and conspicuous that he must have drawn it after Hakluyt and after nature. Van- 
couver could find nothing like this Pinnacle rock. 
Duncan names this island Green island, probably from its verdant appearance. 
Vancouver called it in his report the Island of Tatooche, but he has no name for it on his 
chart. The name was derived from an Indian chief on the cape, who is often mentioned in the 
account of Meares, Vancouver, &c., and sometimes named Tatoochee, or Tatoochie, or 
Tootoosh. 
The Spanish accounts of that time, for instance those of Quimper, one of the first Spanish 
explorers of De Fuca straits, often mentioned an Indian chief Tutusi, which is probably the 
same on their maps; therefore, also, this island is named Isla de Tutusi.* 
A somewhat similar name of an Indian chief of De Fuca straits is mentioned in the account 
of Valdes and Galiano, namely, the chief Tetacus. Jewitt, who was long a prisoner among 
the Indians of Nootka Sound, year 1800, also mentioned an Indian chief Tootoosh; the name 
is in some instances corrupted to Tatersh. Some Spanish navigators t called the island Isla de 
la Punta de Martinez, (the Island of Martinez Point.) 
Duncan’s Rock lies north, 8° west from Tatooche island, at a distance of not quite one mile. 
It rises first above the surface of the water, and the surf breaks over with great violence. 
Between it and Tatooche island is a clear passage. Vancouver called it Duncan’s Rock because 
he wished to commemorate this captain’ s name, whose excellent sketch he had on board. The 
English captain, Kellet, who surveyed this island in 1847, has on his charts still another smaller 
rock, about twelve miles to the northwest of Duncan's Rock, which he calls Duntze Rock, after 
Captain T. A. Duntze. No such rock has been found by the United States Coast Survey. 
DE FUCA STRAIT. 
SOUTHERN SHORE. | 
General history of the Strait of Juan de Ғиса, 48° 20 north latitude, from 124° 45! to 122° 48! 
west longitude. 
The Strait of Juan de Fuca is the most remarkable inlet of the whole Pacific coast of the 
continent of America. It is bounded on the north by the southern shore of Vancouver’s island 
and other smaller islands, and on the south by the northern shore of the Mount Olympus 
peninsula. On the east it is terminated to a certain extent by the western shore of Whidby’s 
island, 
The strait has its western entrance between Cape Flattery, on the south, and Bouilla Point, 
a point of Vancouver’s island, between Port San Juan and Nitinat sound, on the north. 
Its general direction is from east to west, and its length is about eighty nautical miles. It 
Sweeps at first somewhat to the southeast from Cape Flattery, and then turns more directly to 
the east. 
% See for instance the maps of the Sutil and Mexicana. 
f For instance, Galiano and Valdes, in their account, page 42. 
