Jim O'Connor is a research geologist with the United States Geological Survey ( USGS ). He joins the exchange to discuss the ...

Although original plans to construct a scenic highway in the area failed, the museum noted the expedition resulted in the formation of the Oregon Skyline Trail — along with 700 photos of local ...

READ ALSO: Portland exhibition examines story of survival through art of three generations Although the highway was never built, the Oregon Skyline Trail opened in 1921, showcasing the Cascades ...