2 shoe clerks reading a magazine about prospecting for gold in the land of the midnight sun... South of the border or west of the rockies.
5 seconds sound clip from the The Treasure of the Sierra Madre movie soundboard.
You can hear this line at 00:31:02.026 in the Blu-ray version of the movie.
Quote context
[...]
(Howard playing a lively tune on the harmonica)
- What's that you say? Go back? Ha ha! Well, tell my old grandmother!
- My, my, my! What great prospectors!
- Shut your trap! Shut up or I'll smash your head flat!
- Go ahead! Go ahead! Throw it! If you did, you'd never leave this wilderness alive!
- Without me, you two would die here more miserable than rats!
- Oh, leave him alone! Can't you see that the old man's nuts?
[...]