One day you were taking a hike in some foothills somewhere near the East Coast of the US. It was clear another hac– umm, hiker had already been there when you came across the following munged signage.
There was a note attached to it which read:
-T+H-E--K-E+Y+-I+S+ +I-N-V+I-S-I+B-L-E+ Y-E-T+T-H+E+M-E+S+S-A+G-E I+S-+O-B-S+C+U-R+E+D-+B+Y T+H+A-T+--W+H+I+C-H-++I-S -C+O+N-C-E+A-L-E+D- -×+×-×+×I+N×+×-×-×+ P+L-A+I-N-S+I-G-H-T
Where were you? What was the arrow pointing to?