Codes before: 
https://www.geocaching.com/geocache/GC0 - missing
https://www.geocaching.com/geocache/GC1 - missing
https://www.geocaching.com/geocache/GC2 - missing
https://www.geocaching.com/geocache/GC3 - missing

#001 Mike's First

Mike's First

#002 Secret Lava Bed

Secret Lava Bed

#003 Rivertracks

Rivertracks

#004 Geocache

Geocache

#005 Mountain Marsh

Mountain Marsh

Codes after: 
https://www.geocaching.com/geocache/GCA - missing

#006 Columbia River Stash

Columbia River Stash

Codes after: 
https://www.geocaching.com/geocache/GCC - missing

#007 Geocache

codes after: 
https://www.geocaching.com/geocache/GCE - missing

#008 Geocache (GCD)

Geocache (GCD)

#009 The Original Stash

The Original Stash

codes after:
https://www.geocaching.com/geocache/GC11 - missing

#010 First Divine

First Divine

#011 GC12 5/12/2000

GC12 5/12/2000

#012 Billy Graham Lookout

Billy Graham Lookout

#013 Williams Lake

Williams Lake

#014 Goat Summit Geocache

Goat Summit Geocache

#015 GC16 6/4/2000

GC16 6/4/2000

#016 Geocache 7/21/00

Geocache 7/21/00

#017 Tarryall

Tarryall

#018 Geocache

#019 Geocache

#020 Gorilla Stash

Gorilla Stash

WORLD Oldest by GC code with archived

WORLD Oldest by GC code with archived.list-details-1wr9x6v{text-transform:uppercase;font-size:12px;}@media screen and (min-width: 600px){.list-details-1wr9x6v{font-size:1.25rem;}}.list-details-1wr9x6v.shareable{color:#87705a;}.list-details-1wr9x6v.public{color:#00b265;}Public

WORLD Oldest by GC code with archivedPublic