Regarding OP's item -- [
www.altamontpress.com] -- I found this possibility -- a link to some info about a "
Train derailment involving 29 cars occurred about 5:00 PM, February 12, 1974." here -- [
www.deq.state.or.us] -- via this search -- [UP derailment along Columbia River 1950..1980] -- [
www.google.com]
Regarding Paul Guernsey's item -- [
www.altamontpress.com] -- my gsearch for [Union Pacific 998 an E-7 hit a slide near Benson State Park around 1962 EB] -- [
www.google.com] -- turned up nothing useful for me in the firt two result pages.