TAILS (Train Automatic Integrity and Location System) sensors for up trains in the loop

TAILS (Train Automatic Integrity and Location System) sensors for up trains in the loop
View full size photo (1024px by 683px)

Taken with a Canon EOS 50D
Date: July 12, 2010 09:45 AM
Exposure Time: 1/400 sec
Aperture Value: f/8
Focal Length: 70 mm