To answer your question, here are some adjectives that could describe Western towns:
General Descriptions:
* Dusty
* Remote
* Frontier
* Historic
* Charming
* Rustic
* Tranquil
* Wild
* Isolated
* Sleepy
Related to Nature:
* Mountainous
* Desert
* Arid
* Expansive
* Rugged
* Scenery
* Untamed
Related to Culture:
* Cowboy
* Ranching
* Mining
* Outlaw
* Authentic
* Traditional
* Simple
* Friendly
To better help you, I need more information.
* What kind of Western town are you thinking of? (a ghost town, a bustling cattle town, a quiet mountain town?)
* What kind of adjectives are you looking for? (positive, negative, descriptive, emotional?)
* What is the context for these adjectives? (Are you writing a story, poem, or a description?)
Once I have more information, I can give you a more relevant list of adjectives.