Co-acting signals RBK712P and RBK710P added at the up end of the loop

Co-acting signals RBK712P and RBK710P added at the up end of the loop
View full size photo (1920px by 1280px)

Taken with a Canon EOS 7D
Date: February 16, 2019 15:13 PM
Exposure Time: 1/800 sec
Aperture Value: f/11
Focal Length: 70 mm