From Plymstock the line ran broadly east with a southward swoop at Brixton Road, with stations at Billacombe, Elburton Cross, Brixton Road, Steer Point, and the terminus at Yealmpton.
The line climbed steeply from Plymstock to Billacombe, with a ruling gradient of 1 in 68; from Billacombe it fell again at 1 in 60 for a mile and a half.