Lots of, uh...discussion about running tracks on DLR.  Some apparently
can't believe the Feds would spend money on such things as tracks when
there are perfectly good roads to jog on.  Hah!  It's da stimulus, I
tell ya!  This all could very well have been the result of some new
fitness mandate for armed forces, in hopes of avoiding the fat-assery
of the general population.  In any case, it seems to be the new fad to
have running tracks.  It's a bit dissappointing Groom choose to go
with a plain asphalt track.  One would expect it to at least be some
sort of desert brown color to make it "invisible".  Good for
befuddling the Russians and DLR'ers.

This 272 page, 9 meg environmental assessment for capital improvement
projects at Nellis and Creech is a wealth of info.  It was issued in
May of 2008, so likely covers the current Nellis running track.  Not
sure if it covers Creech's track, but it does list older projects
covered by other actions  in the appendix.  Creech's track is likely
in there, but's there's SO much stuff to go through.  Treasures
await.  For example there's "RKMF050047 Construct Rubberized Surface
Fitness Trail".  Oh...it's not a track.  It's a "fitness trail".

http://www.nellis.af.mil/shared/media/document/AFD-081125-014.pdf