From Beinn Dorain in the south to Beinn a' Chreachain in the east, the Bridge of Orchy hills form an impressive arc of high ground, a huge earthwork guarding the southern rim of Rannoch Moor. If you're not going to traverse the lot in one go (a fairly big ask) then Beinn Achaladair and Beinn a' Chreachain make a great pair to start on, a scenic ridge romp above remote craggy corries, with vast views out over the waterlogged expanse of the Moor. The walk described here is spiced with a scrambly ascent of Achaladair's little known north ridge. It's not a route mentioned in many books, but particularly worthwhile under snow, when it just about merits being called a grade I winter climb. A long tough finish through the beautiful native pines and impenetrable sapling thickets of Crannach wood rounds off this classy Southern Highlands day.
11.86 miles, 19 km, 1,159m ascent, 8 hours. Fort William or Oban
Read more at http://www.ukhillwalking.com/logbook/r/?i=886