Cholera outbreaks and pandemics
That year, cholera was transmitted along the California, Mormon and Oregon Trails as 6,000 to 12,000 are believed to have died on their way to the California Gold Rush, Utah and Oregon in the cholera years of 1849–1855. It is believed more than 150,000 Americans died during the two pandemics between 1832 and 1849.
Mount Hood climbing accidents
Avalanches are popularly believed a major climbing hazard, but relatively few Mount Hood deaths are attributed to them. For the 11-year period ending April 2006, there was one death on Mount Hood caused by an avalanche,
while 445 avalanche-related deaths occurred throughout North America.
Compared to other western states, Oregon has relatively few avalanche fatalities (16 of the 1009 for the U.S. from 1951 to 2015).
There are between 100 and 200 deaths each year worldwide from avalanches.