An Iowa Counties Challenge Mystery Cache

Updated 20 May 2018- The owners placed a "No Trespassing" sign near this cache. I have received special permission from the owner to allow geocachers to traverse to the beacon with the cache. There is no need to go past the sign into the field.

This is a challenge cache.  You must meet the requirements of the challenge before you log a find.  The cache is at the posted coordinates.

The challenge cache, GC3YAYW "L in XX An Iowa Counties Challenge" by bellcurve, inspired me to make an effort to find a significant number of caches in many Iowa counties.  I did not manage to qualify before the cache was archived.  I place this version of "An Iowa Counties" challenge to bring a challenge cache to Buchanan County.

This Iowa Challenge is for the geocacher who often travels throughout Iowa, finding numerous caches in many Iowa counties.  Please note that you must meet the requirements of the challenge before logging your find.  You must also prove that you have met the requirements in your posted log.  The requirements are:

1) Find and log at least 200 caches in four different Iowa counties.
2) Find and log at least 100 caches in eight different Iowa counties.
3) Find and log at least 50 caches in twelve different Iowa counties.
4) Find and log at least 25 caches in sixteen different Iowa counties.
5) Include proof of meeting the requirements in your posted log.

Clarification 13 November 2017: The county that a cache is located in is determined by the coordinates on the listing, not the actual location of the container of the multi, unknown, or wherigo cache.

Note that an Iowa county can be in more than one category.  For example, I have found more than 200 caches in Buchanan County, so I count Buchanan County as a county with at least 200 caches, at least 100 caches, and at least 50 caches.  This means that the minimal number of counties needed to completed this challenge is 16.

Please include proof of meeting the requirements in your posted log.  You can copy and paste the report from the Challenge Checker into your "Found" log.  Please do not give a listing of all the caches you find to complete the challenge.  If you use a map, please be sure to use different colors to represent counties, rather than various shades of one color.