Question: Bottom Points railway station is on a heritage railway system that is situated near this town?

Context paragraphs:
Ravenglass (R&amp;ER) railway station: Ravenglass Heritage Railway Station is the Western terminus of the Ravenglass and Eskdale Railway.  It is situated to the east of main line railway station, which is itself a station on the Cumbrian Coast Line.  The facilities at the railway station include toilets, under-cover platforms, booking office and café.  The railway station complex incorporates 2 locomotive sheds, a carriage shed, a signal box, managerial offices and 2 camping coaches; along with the railway station itself.

Farnham station (Quebec): Farnham station, or the Canadian Pacific Railway station is a disused railway station in Farnham, Quebec, Canada.  Its address is 191 Victoria Road.  The station opened in 1950.  It was designated as a heritage railway station under the Heritage Railway Stations Protection Act in 1994.

Bottom Points railway station, New South Wales: Bottom Points is a railway station on the Zig Zag Railway in the Blue Mountains area of New South Wales.

Zig Zag Railway: The Zig Zag Railway is an Australian heritage railway, situated near the town of Lithgow in the state of New South Wales.  The line climbs the western flank of the Blue Mountains, using railway zig zags to gain height.  It was opened by the not for profit Zig Zag Railway Co-op.  Ltd. as an unpaid volunteer staffed heritage railway in October 1975, using the alignment of the Lithgow Zig Zag line that formed part of the Main Western line between 1869 and 1910.

Ochira railway station: Ochira railway station (Code:OCR) is an 'E-Class' railway station, situated near the city of Kollam in Kollam district of Kerala.  Ochira railway station is situated at the borders of Kollam district.  It falls under the Thiruvananthapuram railway division of the Southern Railway Zone, Indian Railways.  The railway station is situated between Karunagappalli and Kayamkulam.  The nearest important major rail head is Kollam Junction railway station.  The other major railway stations near oachira are Kayamkulam Junction railway station and Karunagappalli railway station.

Westmount station: The Westmount station (French: Gare de Westmount ) is a disused railway station in the city of Westmount, Quebec, Canada.  Its address is 4848 Saint Catherine Street West at the bottom of Victoria Ave. It was designed for the Canadian Pacific Railway by the company architect, W.S. Painter, and was completed in 1907.  The station is now owned by the city of Westmount.  The station closed to passenger service in 1983.  It was recognized as a Heritage Railway Station according to the Heritage Railway Stations Protection Act in 1994.

Lincolnshire Wolds Railway: The Lincolnshire Wolds Railway is a heritage railway based at Ludborough station, near Grimsby in Lincolnshire, England and the only standard gauge steam railway in Lincolnshire open to the public.  The line is part of the original Great Northern Railway (GNR), a rail system that opened in 1848 and once linked Grimsby, Louth and East Lincolnshire with London.  In early 2002, 2009 and 2013 the Lincolnshire Wolds Railway received a top national award from the Heritage Railway Association for its heritage railway efforts.

Greenway Halt (Devon) railway station: Greenway Halt railway station is a small railway station on the Dartmouth Steam Railway, a heritage railway in Devon, England.  It is situated near the northern end of the 495 yard long Greenway Tunnel and convenient for visitors to the Greenway Estate, the historic home of Agatha Christie.

Howrah Junction railway station: Howrah Junction railway station (station code HWH) is the largest railway complex and biggest railway station in India.  It's the busiest railway station in India in terms of train frequency after Kanpur Central, Vijayawada Junction, Delhi Junction, New Delhi and Ambala Cant.  Around 673 train routes start, end, or pass through the station daily.  With 23 platforms (the largest number of platforms in the entire Indian railway system), it has the highest train-handling capacity of any railway station in India and is one of the busiest railway stations in terms of passenger volume per day.  It is one of the five intercity railway stations serving the city of Kolkata, the others being Sealdah Station, Santragachhi Station, Shalimar Station and Kolkata railway station.  The terminal station is located on the West bank of the Hooghly River and is linked to Kolkata by Howrah Bridge.

Perinad railway station: Perinad railway station (Code:PRND) is an 'E-Class' railway station, situated near the city of Kollam in Kollam district of Kerala.  Perinad Railway Station is falls under the Thiruvananthapuram railway division of the Southern Railway Zone, Indian Railways.  Perinad railway station is situated between Munrothuruthu and Kollam Junction railway station.  The nearest important major rail head is Kollam Junction railway station.

Supporting paragraphs: Bottom Points railway station, New South Wales Zig Zag Railway
Answer: Lithgow