Starting from Stair, the Stoneycroft Mine Road also gives access to Sail Pass, via the cobalt mine. From Buttermere village a long walk up Sail Beck and 'behind' Ard Crags can be used to gain Sail Pass from the other side.
From Stair, the Stoneycroft Mine Road leads to Sail Pass through the cobalt mine. To reach Sail Pass in Buttermere village, one must walk along Sail Beck and 'behind' Ard Crags on the opposite side.