The surface sensor tower is a steel-and-concrete structure about eight or nine feet high, with a rusted ladder and rooftop antennae.
The surface camera tower stands about eight or nine feet high, with a ladder up one side and antennae projecting from the top. Its steel-and-concrete construction and rusted ladder are visible outside.
A steel-and-concrete tower about eight or nine feet high, with a rusted ladder on one side and antennae projecting from the top.
It is the surface structure supporting the silo’s cameras.