I've changed the azimuths for Triangulation Two letterbox to include
objects closer in. New bearing are:

Sign on the front of the Post Office 054 degrees
Peak on front of Home Depot: 094 degrees
Two "flag poles" on S side of Field: 212 degrees
Traffic intersection: 310 degrees.

I've also added hints for both letterboxes which are encoded with a
simple substitution cipher using keywords. Got to the webpage:

http://po8.com/letterbox/triangle1/

to work with those clues.

Jimmus and SpikesMom