The Columbia River is a ribbon of life for native cultures that have called the Gorge home for over 10,000 years. This river highway transported people by canoe and carved a pedestrian corridor through the mountains. It provided a connection between coastal and plateau peoples.
The Chinookian-speaking people of this area and their up river neighbors who spoke Sahaptin occupied an ideal setting for extensive trade. Summer gatherings drew traders from all over the Northwest.
The river's teeming fish and verdant shores were rich resources. The native peoples knew the best sites to harvest and when each food would be at its peak of quality. This was not haphazard, but required a year-long travel itinerary. Social and spiritual events were closely linked with the sites of these food sources.
[Really? I am not sure, perhaps it had to do more with the more fertile fields west of the mountains...]
When the Yakima Indian War erupted in 1856, Chief John (aka "Indian John"), leader of a band of the Multnomah tribe who formerly lived in the area, warned settlers living west of the Sandy of the danger.
Indian John's tribe had been decimated by epidemics of smallpox, measles and other communicable diseases caught from early traders. According to stories repeated by descendants of early settlers, his band had also suffered a catastrophic loss when an overhanging cliff face (part of Broughton Bluff) gave way suddenly and buried his people's camp. According to the story, the slide took the remainder of his small band, leaving Indian John and his wife the sole survivors. When Indian John's wife died, he laid her to rest among the native dead at an island up the Columbia River.
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Indian John's story is given some credence by the number of artifacts found by road crews constructing the highway, which included a carved stone "turtle" recovered by roadboss Charlie Bramhall in 1914.
Even as late as the 1940s, uglier views of the Native American population were expressed...
From earliest times the Indians of the region were noted for their ugly and thievish natures. Lewis and Clark, on their return from the mouth of the Columbia, noted that, "the Wahclellahs we discovered to be great thieves . . . so arrogant and intrusive have they become that nothing but our numbers saves us from attack . . . We were told by an Indian who spoke Clatsop that the Wahclellahs had carried off Captain Lewis's dog to their village below. Three men, well armed, were instantly dispatched in pursuit of them, with orders to fire if there were the slightest resistance or hesitation. At the distance of two miles they came within sight of the thieves, who, finding themselves pursued, left the dog and made off. We now ordered all the Indians out of our camp, and explained to them that whoever stole any of our baggage, or insulted our men, should be instantly shot."
Washington Irving, in writing of Robert Stuart's passage of the rapids in 1812, calls the Cascades "the piratical pass of the river," and that "before the commencement of the portage, the greatest precautions were taken to guard against lurking treachery or open attack." However, in 1824, Sir George Simpson wrote in his Journal: "Left our Encampment at 2 A.M. and got to Cascade portage. . . . Here we found about 80 to 100 Indians who were more peaceable and quiet than I ever saw an equal number on the other side of the mountain; it was not so many years ago as on this very spot they attempted to pillage a Brigade under charge of Messrs. A. Stewart and Ja Keith when the former was severely wounded and two of the Natives killed; but since that time they have given little trouble and this favorable change in their disposition I think may be ascribed in the first place to the prompt and decisive conduct of the Whites in never allowing an insult pass without retaliation & punishment, and in the second to the judicious firm and conciliatory measures pursued by Chief Factor McKenzie who has had more intercourse with them than any other Gentleman in the Country."
Skilled Indian paddlers or French Canadian boatmen were sometimes able to shoot the Cascade rapids successfully, particularly during spring freshets, but customarily even the most daring disembarked and portaged their cargoes.
Oregon State Archives - A 1940 Journey Across Oregon http://arcweb.sos.state.or.us/pages/exhibits/across/thedalles.html