EN4
Saint Albans
WD6
HP1
Wembley
Barnet
Barnet
Harrow
Stanmore
Harrow
London
Watford
Hemel Hempstead
Hillingdon
Southall
Southall
Watford
Barnet
Barnet
Slough
Slough
Barnet
Camden Town
Headstone North
Camden Town
Harrow
Southall
Watford
Watford
Uxbridge
Harrow
Ealing
West Drayton
Yiewsley
London
Camden Town
Harrow
Harrow
Harrow
Uxbridge