Prime Lines II gets its name from 43 and 73 being PRIME numbers and these are grid LINES. This is the SECOND cache at these coordinates.
The cache is a short hike from the end of FR83. The time of year will determine how you get out there.
You will sign the NEW BLUE LOG BOOK. If possible, try to post a picture of your readings at "00.000". Picture is optional and not a requirement to log the find.
Previous finders are encouraged to come back for a new find and sign the blue log book.
Congratulations to Orion and Son for FTF!