BNSF Geometry Train has operated several times on the Peavine since I've lived here. Usually arrives at night and departs very early in the morning, ahead of the pig train. Below are some photos of the train at Beardsley on 7 Jun 2006.

GP60M leads the eastbound Geometry Train at Beardsley.

BNSF Track Measurement Car 81

BNSF Track Measurement Car 80 "Rio Grande River"