This is #18 in the spiromania series; and the location of the actual cache is almost too far away. Had I waited until the next cache in the series, i.e. spiromania #19 whose given coordinates are VK 82132 27916, it would have been too far away, that is, beyond the two-mile limit. Earlier we could have used #14 (VK 78990 27561 ) as the posted location, but not #13 (VK 78681 27046).
Recall that VKabfg refers to the 1000 meter by 1000 meter area whose southwest corner is at VKab000fg000. The cache is at VKabcdefghij, whose SW corner point is VKabfg. In the coordinate checker simply enter the correct southwest corner point in the form VKabfg and you will receive the lat/lon location of the cache.
You can validate your puzzle solution with certitude.
The first 10 puzzles solvers are:
1. pfalstad
2. ctc128
3. rickrich
4. Bunganator
5. sparkyfry
6. PackADad
7. BigChiefS4
8. speedy314
9. dmneiman
10. Copaman