Sadly, only Alaskans would appreciate most of them. Many were "Blunt", many were "Cryptic" and a few were "Gross".
There might even be a website listing some.

"Eat a BEAVER & save a tree"

"CASH, GRASS, or ASS......no one rides for free"

EAT ME (Submarine Sandwiches)

"Where the HELL is Chittna"

"Where the HELL is McCARTHY"

There was one about the guy stole new Cat D-9 off pipeline. I think his name was HURLEY.

or: "WHERE the HELL is HURLEY"

Eat a moose, 60,thousand wolves can't be wrong.

Let them starve in the DARK, when the lights go out.

I love frost heaves

Eat me raw honey.
(Biz advert)


Pipeline days:
Don’t take your half out of the middle.

Happiness is a Texan flying south with an Okie under each arm.

Alaska men
the odds are good,
but the goods are odd

Alaska
where men are men
and women win the Iditarod.
and win, and win, and win!

Please God, let there be one more oil boom!
I promise not to piss it all away this time!

Hazlewood for Governor,
employment for all Alaskans!

Homer, a quaint little drinking village
with a fishing problem.

Dang I must be pretty old. I remember all of these.

the best one is

Pukers

tail draggers do it backwards

Don't blame me I voted for Joe Vogler

Beaver Airways

We fly into the bush...

That's the first one that came to my mind.

Once you cross the Brooks, there's a woman behind every tree.