Possibly the old KUSW and later KTBN Shortwave broadcasting site. I believe it was built around 1987 as KUSW-SW and soon told to the TBN network and switched calls to KTBN-SW. I think it shut down for good in the mid 2000s or so. I thought that they had torn down the site, but it may have simply been abandoned.
I was thinking the same about loading that thing up!Wow - does look abandoned, ground level photo is from today, sure would be fun to load that antenna up!
W
http://www.ogdenarc.org/newsletter_archive/Watts News June 2011.pdf
Page 6, 7 and 8 of the PDF has your answers