The Northern line is a London Underground line that runs between North London and South London. It is printed in black on the Tube map. It carries more passengers per year than any other Underground line – around 340 million in 2019 – making it the busiest tube line in London. The Northern line is unique on the Underground network in having two different routes through central London, two southern branches and two northern branches. Despite its name, it does not serve the northernmost stations on the Underground, though it does serve the southernmost station at Morden, the terminus of one of the two southern branches.
Finsbury Park is an intermodal interchange station in North London for London Underground, National Rail and London Buses services. The station is the third busiest Underground station outside Zone 1, with over 33 million passengers using the station in 2019.
East Finchley is a London Underground station in East Finchley in the London Borough of Barnet, north London. The station is on the High Barnet branch of the Northern line, between Finchley Central and Highgate stations, and is in Travelcard Zone 3.
Highgate is a London Underground station and former railway station in Archway Road, in the London Borough of Haringey in north London. The station takes its name from nearby Highgate Village. It is on the High Barnet branch of the Northern line, between East Finchley and Archway stations, and is in Travelcard Zone 3.
High Barnet is a London Underground station, and former railway station, located in Chipping Barnet, North London. The station is the northern terminus of the High Barnet branch of the Northern line and is in Travelcard Zone 5. It is situated 10.2 miles (16.4 km) north north-west of Charing Cross. The next station south is Totteridge & Whetstone.
Stanmore is a London Underground station in Stanmore, north-west London. It is the northern terminus of the Jubilee line and the next station towards south is Canons Park. The station is on the south side of London Road and is in Travelcard Zone 5.
Archway is a London Underground station at the intersection of Holloway Road, Highgate Hill, Junction Road and Archway Road in Archway, north London, directly underneath the Vantage Point building. It is on the High Barnet branch of the Northern line, between Highgate and Tufnell Park stations, in Zones 2 and 3.
Mill Hill East is a London Underground station in Mill Hill in the London Borough of Barnet, north London. The station is the terminus and only station of a single-track branch of the Northern line from Finchley Central station and is in Travelcard Zone 4. It is the least used station on the Northern line with 1.60 million passengers in 2023.
Finchley Central is a London Underground station in the Church End area of Finchley, north London. The station is located on the High Barnet branch of the Northern line, between West Finchley and East Finchley stations; it is the junction for the short branch to Mill Hill East. The station is around 7 miles north-northwest of Charing Cross and is in Travelcard Zone 4.
Totteridge & Whetstone is a London Underground station in Whetstone in the London Borough of Barnet, North London. It is on the High Barnet branch of the Northern line, between High Barnet and Woodside Park stations, in Travelcard Zone 4. It was first built in 1872.
West Finchley is a London Underground station in the Finchley area of the London Borough of Barnet. The station is on the High Barnet branch of the Northern line between Woodside Park and Finchley Central stations and is in Travelcard Zone 4.
Woodside Park is a London Underground station in Woodside Park, north London.
The Edgware, Highgate and London Railway was a railway in North London, England. The railway was a precursor of parts of London Underground's Northern line and was, in the 1930s, the core of an ambitious expansion plan for that line which was thwarted by the Second World War. Parts of the line were closed in the 1950s and have since been removed.
Cranley Gardens railway station was a station in the Muswell Hill area of north London. It was located between Highgate and Muswell Hill stations, at the junction of Muswell Hill Road and Cranley Gardens. Nothing remains of the station today and its site is now occupied by housing and a school. In the 1930s, plans were made to electrify the line and transfer the mainline service to London Underground's Northern line, but these were abandoned after the Second World War. The station closed for passengers in 1954 and for goods in 1957.
Mill Hill (The Hale) was a station in Mill Hill in north London, on the now-removed railway between Mill Hill East station and Edgware railway station. It was located near the junction of Bunns Lane and Lyndhurst Avenue.
Edgware was a London and North Eastern Railway (LNER) station located on Station Road in Edgware, north London. It was opened in 1867 and was in use as a passenger station until 1939, then as a goods yard until 1964.
Brockley Hill was a proposed London Underground station that was going to be built at Brockley Hill in north London as part of the 1935-1940 New Works Programme for the London Passenger Transport Board. This station would have been the first of three to be built as part of a 1930s extension project to extend the Northern Line to Bushey Heath. The next stops being Elstree South and Bushey Heath, both would have been near the Aldenham Works, London Transport's main bus overhaul depot.
Elstree South was a proposed London Underground station in Elstree, Hertfordshire. It was designed by Charles Holden. The planned location of the station was adjacent to the A5183, north of the junction with the A41 and where junction 4 of the M1 motorway was subsequently built.
Bushey Heath was a proposed, but unbuilt, London Underground station in Bushey Heath, Hertfordshire, England. The planned location of the station was at the junction of the A41 and A411 roads.
The New Works Programme of 1935–1940 was the major investment programme delivered by the London Passenger Transport Board (LPTB), commonly known as London Transport, which had been created in 1933 to coordinate underground train, tram, trolleybus and bus services in the capital and the surrounding areas. The programme was to develop many aspects of the public transport services run by the LPTB and the suburban rail services of the Great Western Railway (GWR) and London and North Eastern Railway (LNER). The investment was largely backed by government assistance as well as by the issuing of financial bonds and was estimated to cost £42,286,000 in 1936.
Main entrance to Edgware Station
Inside the train shed
Platforms 2 and 3 heading southbound
Edgware roundel
4.92 million [2] 
2.82 million [3] 
London transportportal 
