Terry
Yes indeed, welcome.
Looking at the slideshow on your site, I have to agree with Russ's dictum that it's the hand-of-Man thing that makes pictures within the landscape (loose definition!) idiom special. I think that holds in your case too.
Of course, this might simply be a reflection of my own, personal, proclivities, but the inclusion of such things in your work makes some of the images rather special to me. Perhaps it's partly something to do with the balance/compositional possibilities that such things offer: that old barn near the beginning of the slideshow, for example, provides a 'main' subject, the finding of which usually defeats my eye in most of the landscape work I come across.
I must state that landscape ain't my thing - but that doesn't mean I can't appreciate it when it looks good to me!
Nice work.
Rob C