Ghosthunter Challenge 13 Mystery Cache

I've always loved virtual caches because they usually have such an interesting history associated with them, and it doesn't hurt that their map logo is a cool little ghost.  So in honor of Halloween, I put out a challenge cache dedicated to finding the "ghosts" of the geocaching world!  Find thirteen virtuals anywhere in the world to qualify, and then find the cache in its "final resting place" to sign the logbook!  Happy haunting...er, hunting!

Qualification for this cache can be easily checked using the Project Geocaching checker. A sample log is below:

Pyrusticia has used Project-GC to see if he/she qualified for this challenge and he/she did.

User has 23 finds (13 needed). Filters:( types (Virtual Cache) )
gccode cache_name
GCC129 Chugwater Station
GC946E Cheyenne GPS Calibration
GC2AE5 Clogh Feish
GCC509 Another longmont cache
GCG96Z Dry Creek?
GC4CE1 MM MM Good
GC4E94 IN THE BELLY OF THE BEAST
GCG2VN LV Money-makers
GC6936 Tree Rock
GCEAF6 Deadwood Stage Start
GCC71 Gettysburg
GCBB8F I am the God of Leaky Caches and Soggy Log Books
GC2657 I can see Lincoln