Also called White Dust (or Powder) Opera. Climb the steep fingery wall left of the undercut inverted V groove, moving right to the obvious block above the groove. Continue rightwards until an excellent jamming crack leads to the wall above and the top.(http://www.leicesterclimbs.f9.co.uk/ForestrockR.htm)
Ken Vickers and Dave Draper, 1959 (aid). FFA Simon Pollard May 1978..