Here's some aerial map photos showing the location and photos of the remains of the Interlocking Tower
once located at the intersection of the Toledo,Saginaw & Muskegon/Grand Trunk Western RR and the
Grand Rapids & Indiana/ Pennsylvania RR. in Cedar Springs.
Aerial photos
(http://www.pbase.com/tigweld/image/114864534)
(http://www.pbase.com/tigweld/image/114864531)
(http://www.pbase.com/tigweld/image/114864537)
Photos of the remains
(http://www.pbase.com/tigweld/image/114864547)
(http://www.pbase.com/tigweld/image/114864583)
(http://www.pbase.com/tigweld/image/114864594)