Some of these pictures and descriptions may give away plot details that you might not want to know before watching the film.
A cult of monks with torches and brown hooded robes chanting in high church Latin perform human sacrifices in an old mine in the desert. Whey they're not stabbing people through the heart, they like to throw their enemies into pits with rattlesnakes for a slower death. Sometimes they fall in themselves. After one man was snake-pitted by the cult, a deputy sherriff finds him the next morning on the ground far from the pit next to a rattlesnake. His friend tells him to stay still because the snake is "cocked and loaded," then he shoots the snake with his hunting rifle.
The snakes look like Western Diamond-backed Rattlesnakes. It's hard to tell because of the terrible quality of the dvd. It looks like they shot an actual snake, too, either living or dead.
The movie was filmed near Lajitas in the Texas Big Bend region, but the guys at the hunting lodge were hunting for deer, not gray bands. What a shame.