EXAMPLES FROM THE WEB FOR UPSTAGE
A similar door, opening into the bedroom of the shack, upstage right.
Upstage, burned a driftwood fire in a low hearth of rough bricks; Judge Tiffany sat there, in a spindle-backed chair, reading.
Few are native-born New Yorkers, and scarcely any of them go around with their noses in the air in an "upstage Eastern manner."
Single rose-coloured corduroy curtain for archway up R. hung on upstage side of arch.