GC6ZF7Y ▼
Size:  (micro)
This challenge is very similar to the nearby Challenge: Log all D and all T at least once, but more difficult: you need to have logged at least one cache with each D level and one with each T level on each month of the year. All finds don't need to be made in the same year.
Additional Hints (No hints available.)
What are Attributes?
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You'll collect a digital Treasure from one of these collections when you find and log this geocache: