Welcome to the

Great Ohio

County Century Challenge!

This is a series of challenge caches across the state each with the challenge of finding 100 caches per county.

We are currently in the process of developing the caches across the state, and you can see what counties are currently available below.

To view the current counties available in the challenge on geocaching.com please click here:

Ohio County Century Challenge (geocaching.com)

*counties listed in RED in the map indicate an Ohio County Century Challenge cache is published for the county.

*counties listed in PINK in the map indicate an Ohio County Century Challenge cache is being built for the county.

 *counties listed in RED in the table indicate a Ohio County Century Challenge cache is available for the county

If you're interested in creating an Ohio County Century Challenge cache for your county, please email us at This email address is being protected from spambots. You need JavaScript enabled to view it.

Counties Completed Leaderboard

This leaderboard is periodically updated.

It lists the current TOP 10 finders of Ohio County Century Challenge caches including ties.

Owned caches in the series are counted as a find.

For an up to date count of finds (not including owned caches) for all finders of the series, please click here:

------------>Project-GC Leaderboard<-----------