In the picture to the left—"Duel of Honor" episode #7 —In the background you see the North Fork Land office.
 The bank came to North Fork in episode #8 "The Safe Guard."
 The picture to the right is from "The Money Gun" episode#33—showing the bank in the background. 
North Fork must not have needed a Land Office anymore.  Cowgirl

"Stranger at Night" episode# 36—Very Obvious painted background scenery at the McCain Ranch.
Thanks Rob!