Location & Scenario

Secret Park, on Mercer Island (on W Mercer Island Way, south of 90). The puzzle will be near the igloo, which is in the woods and equidistant from both entry points.

Puzzle

see above.

Elapsed Time

Arrive at 1:00
Find the clue at 1:05
Leave at 1:25

Hints

Each line maps to a single letter.
Each line should be considered as a set of letter pairs.
A US map will outline the answer.

Answer - COPILOT

Rows should be broken into letter pairs.
Letter pairs are postal abbreviations.
When the states are outlined each row spells a letter.