The cache is at the posted location. However, this is a challenge cache, so there are additional requirements that must be met before you can log a find.
The circumference of the earth is generally considered to be 24,901 miles, or 40,075 kilometers. Have you traveled to caches whose total distance from this location add up to 24,901 miles? The distance traveled is calculated from the cache location.
This will be an easy challenge to qualify for if you have 80 caches over 312 miles from the cache location. You could have as few as 5 caches that are 5,000 miles from here and qualify. You are allowed less than 80 caches to reach the mileage goal. All cache types are allowed except locationless because the point of the challenge is that you have physically traveled to the location.
Feel free to include in your log how many caches you needed to meet the requirements.
