Slightly calcareous biotite-?tremolite-quartz schist from Ballachulish Limestone group about 6 yds SE of position of Baliey's Fort William Lag; see Inv.127NW Note 1
Locality details
Allt Bo-loin, 2750 yds S 24.5 deg E of summit (2146 ft) of Coire Ceirsle Hill