While we're on the subject, any OBOD-y (individuals or groups) living &/or practicing in the north-central Maryland, south-central PA region of the U.S.? Imagine a square roughly defined by Baltimore, Frederick, York, and Gettysburg (okay, I know that's not exactly square... call it a quadrilateral, then). Although I'd be willing to stray beyond these notional borders, if it wasn't too too far...
Bright blessings from the heart of the Greenwood,
"Ask the Green Man where he comes from, ask the Cup that fills with red;
Ask the old grey Standing Stones that show the Sun his way to bed.
Question all as to their ways, and learn the secrets that they hold:
Walk the lines of Nature's palm, crossed with silver and with gold."
-- Jethro Tull, "Cup of Wonder" 2009 BS2011 IL