Willie Nelson's Red Headed Stranger album also includes another, brief song titled "Blue Rock Montana." I don't know the songwriter. Here's my transcription:

BLUE ROCK, MONTANA
(Songwriter??)

Well he rode into Blue Rock, dusty and tired,
And he got him a room for the night.
He lay there in silence with too much on his mind,
Still hoping that he was not right.
But he found them that evening in a tavern in town
In a quiet little out-of-the way place.
And they smiled at each other when he walked through the door,
And they died with their smiles on their faces,
They died with a smile on their face.

Don't cross him, don't boss him
He's wild in his sorrow
He's ridin' and hidin' his pain
Don't fight him, don't spite him
Just wait till tomorrow
Maybe he'll ride on again


Interesting. Who wrote it? The tune for the verse is different from the original song.