Caches starting with 4.
- GC31JMV:
4th Annual CITO at Put-in-Bay, Cache
- GC3CCYA:
45 & Clay, Traditional
- GC3E91Q:
422 Pit Stop, Traditional
- GC3Q52D:
4 of a Kind, Traditional
- GC40ATZ:
444, Traditional
- GC4HP5Z:
41 sideline cache, Traditional
- GC74C9H:
45: WCHGT Waynesborough Park Visitor Center, Traditional
- GC9HHTK:
4 Westfield Park Cache, Traditional
- GC4J2YE:
422 Challenge - August, Unknown
- GC4J2XY:
422 Challenge - May, Unknown
- GC4J2YT:
422 Challenge - November, Unknown
- GC4J2WR:
422 Challenge - January, Unknown
- GC4J2XE:
422 Challenge - February, Unknown
- GC4J2YH:
422 Challenge - October, Unknown
- GC4J2Y6:
422 Challenge - June, Unknown
- GC4J2YG:
422 Challenge - September, Unknown
- GC4J2YZ:
422 Challenge - December, Unknown
- GC4J2XW:
422 Challenge - April, Unknown
- GC4J2YA:
422 Challenge - July, Unknown
- GC4J2XP:
422 Challenge - March, Unknown
- GC4TZN9:
44 - Pennsylvania 50 State Star, Unknown
- GC4TZJM:
40 - Pennsylvania 50 State Star, Unknown
- GC4TZW1:
46 - Pennsylvania 50 State Star, Unknown
- GC4TZWB:
47 - Pennsylvania 50 State Star, Unknown
- GC4TZVM:
45 - Pennsylvania 50 State Star, Unknown
- GC4TZKW:
42 - Pennsylvania 50 State Star, Unknown
- GC4TZK9:
41 - Pennsylvania 50 State Star, Unknown
- GC4TZX1:
49 - Pennsylvania 50 State Star, Unknown
- GC4TZWQ:
48 - Pennsylvania 50 State Star, Unknown
- GC4TZMY:
43 - Pennsylvania 50 State Star, Unknown
- GC519Q3:
4 - BLANK, Unknown
- GC6WE3Q:
4 - GSD5, Unknown
- GC7P375:
400 Golden Oldies Challenge, Unknown