The greatest American band of the 60's, except for Love and The Velvet Underground, was The Byrds. I love every phase of the Byrds as they went from folk to psychedelia to country to acid rock and back again. Here is a great version, featuring Earl Scruggs and sons, of one of my favorite songs they recorded. I bet you wouldn't be surprised if I told you it was a Dylan cover.
p.s. Check out the video of Andy Griffith on skull of sidon's blog to see a much younger Clarence White jamming some sweet hillbilly folk.
You Ain't Goin' Nowhere: