Question: What is the suburban dormitory town 12 miles from central London that is served by the station named after Theobalds Park?

full_context: Document 1: Watling Chase Community Forest: Watling Chase Community Forest is an area of 72 square miles located in north London and south Hertfordshire around the towns of Potters Bar, Radlett, Borehamwood and Barnet. It includes Aldenham Country Park, Scratchwood, Moat Mount Open Space and the Watling Chase Timberland Trail, a waymarked walk of 16 kilometres.
Document 2: Watton-at-Stone railway station: Watton-at-Stone railway station serves the village of Watton-at-Stone in Hertfordshire, England. It is on the Hertford Loop branch line between Hertford North and Stevenage and is served by trains operated by Great Northern.
Document 3: Waltham Cross: Waltham Cross is a suburban dormitory town 12 miles NNE of central London and located within the metropolitan area of London, the Greater London Urban Area, and the Borough of Broxbourne in Hertfordshire. It is immediately north of the London Borough of Enfield and is the most southeasterly town of Hertfordshire, located immediately north of the M25 motorway. The Waltham Cross post town additionally includes the neighbouring town of Cheshunt and a small part of Enfield.
Document 4: Hendon: Hendon is a London suburb in the Borough of Barnet, 7 mi northwest of Charing Cross. Hendon was an ancient parish in the county of Middlesex and has been part of Greater London since 1965. Hendon had a population of 52,972 in 2011 and includes the Hendon, Hendon West and Colindale wards.
Document 5: Stevenage railway station: Stevenage railway station serves the town of Stevenage in Hertfordshire, England. The station is 27 mi north of London King's Cross on the East Coast Main Line. Stevenage is managed and served by Great Northern. It is also served by Hull Trains and Virgin Trains East Coast.
Document 6: Woodford, London: Woodford is a suburban town of North East London, England, occupying the north-western part of the London Borough of Redbridge. Woodford is served by London Underground's Central Line. It is located 9.5 mi northeast of Charing Cross and is divided into the neighbourhoods of Woodford Green, Woodford Bridge and South Woodford. In the Middle Ages it was a string of agrarian villages surrounded by Epping Forest in the county of Essex. From about 1700 onwards, however, it became a place of residence for moneyed people who had business in London. As part of the suburban growth of London at the turn of the 20th century, Woodford significantly increased in population, becoming a municipal borough with neighbouring Wanstead in 1937 and has formed part of Greater London since 1965.
Document 7: St Albans City railway station: St Albans City railway station, also shortened to St Albans, is one of two railway stations in St Albans, Hertfordshire, England, the other being St Albans Abbey railway station. City station is the more important of the two stations, as it serves London, Gatwick Airport, Luton Airport and Brighton. It is located 0.5 mi east of the city centre, on the Midland Main Line and served by Thameslink trains on the Thameslink route.
Document 8: London Overground: The London Overground (also known as the Overground) is a suburban rail network in the United Kingdom. Established in 2007, it serves a large part of Greater London and parts of Hertfordshire, with 112 stations on several routes. The network forms part of the National Rail network, but under the franchise control and branding of Transport for London (TfL). Operation has been contracted to Arriva Rail London since 13 November 2016.
Document 9: Chorleywood: Chorleywood is a village and civil parish in Three Rivers District, Hertfordshire. It is situated in the far south-west of Hertfordshire on the border with Buckinghamshire approximately 32 km north-west of Charing Cross. It is part of the London commuter belt and included in the government-defined Greater London Urban Area. Chorleywood as a parish was created in 1845 from part of the parish of Rickmansworth.
Document 10: Theobalds Grove railway station: Theobalds Grove railway station serves Waltham Cross in Hertfordshire, England. It is part of the Lea Valley Lines network, and train services are provided by London Overground. The station is named after the nearby Theobalds Park.
Document 11: Abbey line: The Abbey line, also called the St Albans Abbey branch line, is a railway line from Watford Junction to St Albans Abbey. The 6.5 mi route passes through town and countryside in the county of Hertfordshire, just outside the boundaries of the Oyster Card and London fare zones. Its northern terminus in St Albans Abbey is located in the south of the city, around 1.2 km away from the larger St Albans City railway station on the Thameslink line.
Document 12: Rickmansworth: Rickmansworth is a small town in south-west Hertfordshire, England, situated approximately 20 mi northwest of central London and inside the perimeter of the M25 motorway. The town is mainly to the north of the Grand Union Canal (formerly the Grand Junction Canal) and the River Colne. The nearest large town is Watford, approximately 5 mi to the east. Rickmansworth is the administrative seat of the Three Rivers District Council; the local authority is named from the confluence of three rivers within Rickmansworth's borders; the River Gade and the Grand Union Canal join the upper River Colne near Rickmansworth's eastern boundary and are joined by the River Chess near the town centre from where the enlarged Colne flows south to form a major tributary of the River Thames. The town is served by the Metropolitan line of the London Underground and Chiltern Railways from London Marylebone to Aylesbury.
Document 13: Dagenham: Dagenham ( ) is a large suburb of east London, England. In the London Borough of Barking and Dagenham, it is 11.5 miles (18.5 km) east of Charing Cross and 9.5 miles (15.2 km) east of the City of London. Historically in Essex, it was an agrarian village and remained mostly undeveloped until 1921, when the London County Council began construction of the large Becontree estate. The population of the area significantly increased in the 20th century, with the parish of Dagenham becoming an urban district in 1926 and a municipal borough in 1938. It has formed part of Greater London since 1965 and is a predominantly residential area, with some areas of declining industrial activity, including the Ford Dagenham plant. The southern part of Dagenham, adjacent to the River Thames, forms part of the London Riverside section of the Thames Gateway redevelopment area.
Document 14: Watling Chase Timberland Trail: The Watling Chase Timberland Trail is a 10.5 mile footpath in the Watling Chase Community Forest in Hertfordshire. It starts at Elstree & Borehamwood railway station, where it links with the London Loop, and goes mainly through farmland and parks. It passes through Shenley, London Colney and Colney Heath, finishing in Smallford near St Albans, where it links with the Alban Way.
Document 15: King's Cross Thameslink railway station: King's Cross Thameslink station is a closed railway station in central London, England. It served the Thameslink route but was replaced by new Thameslink platforms at St Pancras in December 2007. The last operator of the station was First Capital Connect. The site is on Pentonville Road, about 160 yd from King's Cross station.
ground_truth: Waltham Cross