This is a Challenge Cache and at the posted coords. This is a BINGO - horizontal / vertical / diagonal - using only Earth Caches on the D/T Matrix. You only need to have a Bingo in one column. BYOP.
Ground Fox Project-GC Challenge Checker to see if they qualified for this challenge and they did. OK: OR{ I have only of types (Earthcache, ): ok:4 horizontal lines of 1 neededI have only of types (Earthcache, ): ok:1 vertical lines of 1 neededI have only of types (Earthcache, ):