THE DALLES — After many incidents of hostilities between Indigenous tribes and white settlers, the U.S. Army ordered the ninth infantry regiment to establish their headquarters at what is now Fort Dalles Museum, the second oldest museum in Oregon. Initially the site of the first U.S. military post east of the Cascade Range, it was established by mounted riflemen in 1850 to protect settlers coming over the Oregon trail, Robert Pollock, museum coordinator, said.

“There were a couple companies with soldiers, so they built log houses and utilized a couple of the old Methodist missionary buildings that were still here. By 1856, there were so many settlers coming over the trail,” said Pollock.