Unfortunately, I didn't take many photos of Burlington Northern trains. But here's what I have.
Back in the 1980s, BN had a yard at Hoyt Street in Portland (nee Spokane, Portland & Seattle, Northern Pacific) that I wish I'd visited to take more photos than these.
In the winter, photos from a hike along the grade leaving Tualatin toward the south.
I used to drive a dump truck for Stearns Rock Crushing in Tonquin. Each trip to and from the quarry took me over the BN's former Oregon Electric mainline crossing at Tonquin Loop. There was a short siding there, a dragging equipment detector on the main, and also the vestige of the former Oregon Electric depot and substation. The latter still exists, according to Google Earth.