A1CC - 1/2 Century Challenge: Traditionals

A2CC - Date Challenge: 6th

A3CC - Calendar Challenge: January

A4CC - Difficulty Challenge: 3.5

A5CC - Alphabet Challenge: C

A6CC - Power Caching Challenge: 100

A7CC - Milestone Challenge: 5K

B1CC - Century Challenge: Traditionals

B2CC - Date Challenge: 7th

B3CC - Calendar Challenge: February

B4CC - Difficulty Challenge: 4

B5CC - Alphabet Challenge: D

B6CC - Power Caching Challenge: 150

B7CC - Milestone Challenge: 6K

C1CC - Five Centuries Challenge: Traditionals

C2CC - Date Challenge: 8th

C3CC - Calendar Challenge: March

C4CC - Difficulty Challenge: 4.5+

C5CC - Alphabet Challenge: E

C6CC - Power Caching Challenge: 200

A list of unknown caches discovered on one day, specifically, 11/10/12.
Update: On 8/2/13 I had a banner day of FTFs on unknown caches so I am changing my list to reflect the new data of 149 caches (unknown) in a day.

Unknown in a Day

Unknown in a Day.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

Unknown in a DayPublic