Here's a few that are borderline fusion with a bit of bluegrass infleuence:
Gillian Welch - Hell Among the Yearlings and Revival
The Be Good Tanya's - Blue Horse
Emmylou Harris - Wrecking Ball
Richard Buckner - Devotiion and Doubt, Self-titled acoustic album, and Bloomed
Marco
PS I think Markanetz meant "Ry Cooder" (not Ray), and I'd second that recommendation.
Gillian Welch - Hell Among the Yearlings and Revival
The Be Good Tanya's - Blue Horse
Emmylou Harris - Wrecking Ball
Richard Buckner - Devotiion and Doubt, Self-titled acoustic album, and Bloomed
Marco
PS I think Markanetz meant "Ry Cooder" (not Ray), and I'd second that recommendation.