No, it is not.
If by "Cowboy State" you mean Wyoming, the answer is Cheyenne.
Probably cowboy.
mi vaquero means my cowboy
A horse trained to play in shows that consist the culture of a cowboy.
Everything. The cowboy culture is actually of Mexican origin.
Gaucho is a kind of cowboy in South America.
For you, Cowboy.
Cowboys loved a colorful phrase! This meant a cowboy's bedroll. It hinted that a cowboy would have fleas.
Cowboys loved a colorful phrase! This is cowboy grammar for "might be able to." "I may can come to the social," said the cowboy.
For you, Cowboy.
No, they use "sombreros" instead cowboy hats. Specially during the "siesta". However, both "definitions" are part of a stereotype. See related questions.