What does that mean? Well, if you frequently walk this trail, you will see written reference that will define it for you. In fact, on your way to this cache you will probably see it more than once.
You are looking for a small black bison tube. BYOP. Return so others don't see it.
This cache is part of the EVAR series. If you don't know what EVAR stands for, just come out to the Juneau Airport and starting walking along the Airport Dike Trail. The meaning will quickly become apparent. There are 8 caches in the series. To find the final and 8th cache, Pacific Flyway GC8JDH4, you will need to obtain bird names & numbers that are contained within 5 of the other 7 caches.