The Milepost tells you about every single thing along the roads on the Alaska trip. Without it, you wouldn't know a lot of the stuff you pass is even there.
Sure does tell you about every little thing, EVERY little thing - and somewhere buried in all the useless dross is about 10% (being generous here) reasonably useful stuff, but only if the copilot is willing to spend most of the trip with head buried in the book trying to figure out where you are - and you constantly having to figure out the mileages so the copilot can find the right spot..
But if you want to know the average length, depth and deviation from straight line of every crack in the pavement, and where 30 years ago a dyslectic eagle nested in a tree which was struck by lightning 15 years ago and topled by a storm just last year (Dang, I really wanted to see that), and the grade of every little hill - then by all means purchase the book --
and then be prepared to collect all the unbound pages that fall out throughout the day and glue them back in each night.
