I'm told that some of the Nebraska driving scenes were also shot on Camino del Rio, near the corn field.
And some night scenes (possibly those of Dexter dumping Norm's body in the silo) were shot along Sunset Valley Drive, in Moorpark, CA, between Tierra Rejada Road & Read Road. Map link.
(That's the same stretch of road where they filmed a brief driving shot, at 29:27, of Dexter & Rudy driving past horses.)
( On the other hand, that picturesque silo appears to have been fake: a model CGI'ed into the scene, added in post-production. )
How the heck did you figure out where it was?
A. In previous seasons, I've
usually had to hunt down the locations after viewing the episodes,
using clues from the various scenes. By the 6th season, though,
I'd developed a small group of fans, spies & tipsters who kept an
eye out for Dexter filming in their neighborhoods, and would let me know
in advance when something was about to film there.
Between those reports, my own personal reconnaissance around town, and a
few new resources I discovered, by the time the first episode aired, I
already knew most (but not all) of the filming locations, and only
needed to watch the episodes and match up the scenes with the correct
This group of helpful fans includes Kerry, Rick, Ellen, Susan, Jason,
Elaine, Joel, Julie, Geoff, Jeff, Jen, and others. My thanks to all of
me about this one, which is one of those needle-in-the-haystack
locations that could have been a nightmare to try to track down on my
own. (Thanks, Rick!)