Hello BleeperNooby,
Congratualtions on the nice relic recovery!
Finding time capsules are difficult if you do not have any map or written records. I have been asked to find a time capsule with no records. Well, there was a yearly log for the establishment, funny, that year is missing

. all other yearly logs are accounted for! Perhaps, this capsule has been removed a few years ago..."if you know what I mean".
Take your time and think about where it could be located (trees, rocks, corner stones...etc.). Most are within 5' - 15' of a focal point, so people will not forget

IMHO, If no records turn up,then begin clearing out the small junk and after bring in a pulse machine or box unit to punch down. If the capsule is buried in a large metal box and/or contains a large portion of metal, you will stand a chance of recovering the object.
I wish you well in your quest.
If you should have any questions, please feel free to PM
Regards,
Doc