I have thought this spot would be good for a cache for a long time. I find it interesting that when state and county roads cross interstates they usually change names. There are some exceptions to this rule but most letter designations change at the highway. Thus the name of this cache. I have found a few websites that talk about the designations for roads but never a specific rule or law.
There is a great place to park right at GZ. The cache should be fairly easy. You DO NOT need to cross the concrete barrier. BYOP and a sense of adventure. Have FUN!!!
Jryy, gurer vf gung prqne...