How to use "lampposts" in a sentence

Tall lampposts were arrayed across this featureless plain, casting dim, reddish light that was severely directed downward to attract as little attention as possible from aircraft that strayed out of the usual flight patterns and from anyone backpacking elsewhere in these remote mountains

At first, I thought the writers had put lampposts on this road, which would make no sense, as it is a secret route through restricted government property