Use caution if you happen across the old missile base over there. The guy that bought the property is a gun nut and from what a friend told me in his unpleasant encounter with him, not a very stable individual. I don’t know of anyone that has explored that location in several years now.
I don’t make it out to Denton as much anymore, but there are a lot of cool farms west of I-35 and even some time capsules if you’re willing to spend a lot of time looking for them.
Edit: if industrial abandonment is more your thing, I’d suggest driving the extra 30 minutes or so to Fort Worth. Not as much lately, but still lots of stuff to explore in Funky Town.