THE CACHE IS AT THE LISTED COORDS.
The lowest elevation in Iowa is 480 feet and the highest is 1670 feet. The objective of this challenge is to find a cache in 20 foot increments from 480ft to 1670ft. Now here's the good news, all finds outside of Iowa are permitted.
Please post your list through geocaching.com, whether it be a complete text listing, a JPEG file or in a bookmark form.
You may find this cache prior to qualifying. Just sign the log and write a note on the cache page
The D/T ratings are based upon the challenge...the actual rating for the cache is a 2/2