I think there is some confusion surrounding the names “Huanggang” and “Lok Ma Chau”, regarding the border crossing between Hong Kong and Shenzhen. So I hope this post can help dispel some of the confusion.
The confusion arises probably because the names all have at least two references.
Firstly, “Huanggang”. It has two references coming to the border crossing. Most people will take it as meaning the Huanggang/Lok Ma Chau border which is open 24 hours. Correct. Huanggang is the border name for Shenzhen side, while Lok Ma Chau is the border name for Hong Kong side.
But “Huanggang” actually has second reference. It is the name of the station of the Shenzhen underground system which connects to Hong Kong/Shenzhen’s another border crossing – the Lok Ma Chau Spur Line/Fu Tian crossing, which came into operation in 2007. Lok Ma Chau Spur Line is the name of the control point at Hong Kong side, and Fu Tian, name of the control point at Shenzhen side. Right after the crossing, at the Shenzhen side, is the Huanggang underground station.
Now you know for “Lok Ma Chau”, it has two references too. It refers to the border name of Hong Kong for the 24 hour Huanggang/Lok Ma Chau border crossing.
It also refers to one of the last stations of the East Rail Line of the Hong Kong train system (another last station is Lo Wu). You take the train to this station for the above mentioned “Lok Ma Chau Spur Line/Fu Tian crossing. This crossing is not 24 hours, and open from 6:30am to 10:30pm only.
And the Lo Wu crossing, a primary passenger crossing between Hong Kong and Shenzhen with rail connection at both sides, is open from 6:30am to midnight.