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, as of the date of this writing.
Next: Burlington Northern Santa Fe