The cache is on the outer perimeter of the parking lot. Park anywhere and walk over to GZ. This cache should be available year-round, but might be difficult under a lot of snow.
Update 1/28/13: Thanks to texdoc56 for the updated coordinates!
Congrats!
FTF: DSICGE
STF: rickhin
Ybbxvat sbe ybir va nyy gur jebat cynprf? Ybbx sbe n trbcvyr va gur sbex bs n gerr jvgu svir gehaxf, bayl n pbhcyr srrg va gb gur gerryvar.