Simplify the following text for a Grade 6 native English-speaking person.
Original: The station is on the Piccadilly Line , between Wood Green and Arnos Grove stations , and is on the boundary between Travelcard Zone 3 and fare_zone 4 .
Simplified: The station is on the Piccadilly Line , between Wood Green and Arnos Grove stations . It is on the boundary between Travelcard Zone 3 and Zone 4 .