Castle Lime Works Quarry

Potters Bar Brook is a 3.3 km (2.0 mi) long stream (brook) in Hertfordshire, England, that is a tributary to the Mimmshall Brook.Rising in the town of Potters Bar, Potters Bar Brook flows a northwesterly course through the former golf course Potters Bar Golf Club until flowing under the East Coast Main Line via a culvert. Then, it flows a westerly course through Warrengate Farm until flowing into Mimmshall Brook.

South Mimms is a village and civil parish in the Hertsmere district of Hertfordshire in the East of England. It is a small settlement located near to the junction of the M25 motorway with the A1(M) motorway.

The Black Horse is a Grade II listed public house at 65 Blackhorse Lane in South Mimms, Hertfordshire, England. It can be dated to the early 17th century -as early as 1642- and is of red brick with a tiled roof. It has been kept in its original style, with traditional decor and original bay windows. The building was registered in 1650 alongside the blacksmith building nearby, which can still be seen in disarray among the trees on the north-eastern side. Blackhorse Lane, which may be named after the pub, is the lane along which South Mimms developed. Due to its location the Black Horse has been a popular destination to Premier league football players over the years as the training grounds of two London teams are within a short distance. The current owner takes pride in keeping the building in its old style and wishes to preserve it to future generations. The Black Horse is also a popular destination to local population and customers from some distance - for drinks and good quality mostly locally sourced food. Aside from the homes along blackhorse lane and nearby village Brookside, the building is surrounded by acres of woodland, neighboring Hatfield House. The surrounding area was and remains rural. It is said that the Black Horse pub is connected to a series of tunnels as far as St Albans. The location is often sought after for productions such as advertisements and shows in need of a traditional english pub.

Water End Swallow Holes is a biological site of Special Scientific Interest in Hertfordshire, south-east England. Located in Welham Green and under the planning authority of Welwyn Hatfield District Council, it has an area of 11.3 hectares (27.9 acres).The site covers more than fifteen swallet holes, the only ones in chalk which are a permanent feature of the landscape. Next to the holes is a swamp area of willow carr which is biologically important, and in deep water there is reed sweet-grass. The site also has areas of woodland and grassland. From the sinkholes the waters become the River Colne. There is access to the site from Station Road.

The Queen Mother Hospital for Animals (QMHA) is a teaching hospital located near Potters Bar, Hertfordshire. More than 100 veterinary nurses work alongside students, residents, interns, and specialty surgeons.In 2008 the Royal Veterinary College completed the third phase of development of the QMHA. This development supports the continued expansion of both secondary and tertiary medical and surgical services for small animals, built around support services such as Emergency and Critical Care, Anaesthesia and Diagnostic Imaging. It first opened in 1986.There is also a strategic focus on the development of first opinion small animal services at the Beaumont Animals’ Hospital, serving the Kings Cross, London area.

Mimmshall Brook is a 9.8 kilometres (6.1 mi) long stream (brook) in Greater London and Hertfordshire, England. Rising from two sources—one in Hertsmere, Hertfordshire, and the other in Arkley, London Borough of Barnet—the brook drains into a catchment area of 52 km² (20 sq mi) at Water End Swallow Holes, Welham Green, North Mymms. It is a tributary of the River Colne.

The White Hart is a Grade II listed public house in South Mimms, Hertfordshire, England. Media related to The White Hart, South Mimms at Wikimedia Commons

Furzefield Wood and Lower Halfpenny is a 7.4 hectare Local Nature Reserve in Potters Bar in Hertfordshire. It is owned and managed by Hertsmere Borough Council.The site is part of a parcel of land purchased in 1935 by Potters Bar Urban District Council. The southern area became the King George V Playing Fields, which are used for recreation, while the wood and meadow are managed for wildlife. Furze is an ancient name for gorse, and the wood has been managed for coppicing for over 300 years. It now provides a habitat for birds, and fallen branches are important for invertebrates. Lower Halfpenny Bottom is a meadow which was once the route of an old drovers' track.There is access from Cranbourne Avenue.

North Mymms is a civil parish in the English county of Hertfordshire. At the 2011 Census the civil parish had a population of 8,921.The village itself is an enclosure. North Mymms Park and Brookmans Park enclose large areas of the parish. Even the parish church (St Mary's) stands in the park of North Mymms; in it is a chapel, the burialplace of the Coningsbys. There is a monument to Robert Knolles, also of North Mymms Place, dated 1458, and a brass to a priest. There is a large monument to Lord Somers, Baron Evesham, and lord chancellor in the time of William III, d. 1716. The monument was erected by his sister, Lady Elizabeth Jekyll. The civil parish includes: North Mymms Place: The Elizabethan house of 1576 belonged to the Coningsby family. John Conningsby died in 1544 and entailed the house to his wife, Elizabeth, during her lifetime. Elizabeth remarried to William Dodds. On Elizabeth's and subsequently William's death, the house reverted to John's son, Henry in 1576, which he then demolished and built a new mansion house between 1576-1578. Tree-ring dating of the main roof timbers confirms these dates. During the ownership of Thomas Coningsby, a Royalist leader in Hertfordshire, the house was plundered by the Parliamentarians. Later North Mymms Park belonged to the Hyde family. The house is famous for its collection of tapestries and for its panelling and fittings. An early 17th-century painted frieze of the "Nine Worthies" was rediscovered in the 20th century.North Mymms House was a location for the 1983 film The Wicked Lady, starring Faye Dunaway as a bored aristocratic lady who takes up highway robbery, while the exterior appeared in Agatha Christie's Marple's The Mirror Crack'd from Side to Side as the house of Marina Gregg. Bell Bar Brookmans Park: The park includes the former park of Gobions (demolished), once the property of Sir Thomas More, and around the turn of the 19th century to an East India merchant, Thomas Holmes, whose daughter became the novelist Ann Doherty. A lofty castellated gateway in the park is now called "The Folly". In 1956 North Mymms Parish Council acquired the land and the lake now known as Gobions Open Space. Water End Welham GreenNorth Mymms is also home to the Hawkshead Campus of the Royal Veterinary College, part of the University of London. The campus also includes the Equine Referral Hospital, and the Queen Mother Hospital for Animals. At the 2011 Census the population was 8,921.

Brookmans Park railway station serves the village of Brookmans Park in Hertfordshire, England. The station is located 14 miles 37 chains (23.3 km) north of London Kings Cross on the East Coast Main Line, on the stretch between Finsbury Park and Hatfield.

South Mimms services is a motorway service area accessible from Junction 23 of the M25 motorway which is also Junction 1 of the A1(M), in England near South Mimms, Hertfordshire. Constructed in 1986 as the first service area on the M25, it is operated by Welcome Break. It is built on the site of Bignell's Corner, named after a garden centre, Bignell and Cutbush, which was close to the junction of the old A6, and A1. At the junction there was also a pub, the Middlesex Arms, and an Esso Motor hotel, near which developed a notorious truck stop and the Beacon Cafe.

Brookmans Park is a village in Hertfordshire, southeast England, known for its BBC transmitter station. Brookmans Park railway station, on the East Coast Main Line, is operated by Great Northern. It is also a waypoint used in air navigation by Heathrow Airport.