As far as I know, CCCooperAgency is many cachers logging under the same account.

She sure is (was?) a very prolific geocacher! 8,538 caches found since May
26, 2001. If I did the math right, that comes to a little over 6
caches/day, every day, 365 days a year. I wish I had that kind of spare
time!

ShadoeCache