Be sure to STOP on Sibley to get this one!
With a title like that, be careful of your assumptions...
I'll provide an extra hint: the cache's color starts with the letter G
You are looking for a very small cache container - slightly larger than a nano.
PLEASE NOTE: There are two signs near GZ that inform you NOT to park between the two signs... The traffic "gurus" are trying to keep the right lane open for those wanting to make a right turn onto Lembi Drive.
Of course, use your own best judgement as to how to avoid any unwanted attention from Folsom's Finest.