This junction has had several different layouts and refers to several slightly different locations. The original junction was for the Macmerry Branch (North British Railway) the present version is between the East Coast Main Line (former North British Railway) and line to Millerhill Marshalling Yard (British Railways).
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Initially the mineral line to Carberry Colliery Pits Nos 2 and 3 was reached via a reversing spur on the east side of the line. It was reached from the north.
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This was a junction station. To the north the line, opened in 1866, ran to Monktonhall Junction (east of Edinburgh) and to the south the line continued through Dalkeith to Hardengreen Junction on the Waverley Route. To the south of the station was the branch to Macmerry (opened as far as Ormiston for goods in 1867). This was continued to Macmerry (goods 1868, passengers ...

This colliery was served by sidings from the Macmerry Branch (North British Railway). A train from Smeaton would arrive by reversal at Crossgatehall Halt. Opened by A G Moore & Co.
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This was a single platform halt opened for the Dalkeith Colliery Nos 1,2 and 3. The platform was on the north side of the line and west of the A6124 over bridge.
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This was a single platform station, just west of Ormiston Junction where the line from Edinburgh divided for Macmerry (opened 1868) and Gifford (opened 1901). Ormiston itself opened to goods in 1867 and passengers in 1872.
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This junction was directly east of Ormiston station. The Macmerry Branch (North British Railway) of 1867 was continued to Macmerry in 1868. This was met by the Gifford and Garvald Light Railway in 1901.
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This station had a passing loop and two slightly staggered platforms. The platform on the west side had the station building at the south end and the east side platform was slightly further north. The goods yard was on the east side, approached from the north. Winton House is a half mile south east of the former station.
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This was the terminus of a branch from Monktonhall Junction. There were several mines in the Macmerry area. The station was in the west of Macmerry.
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Initially the mineral line to Carberry Colliery Pits Nos 2 and 3 was reached via a reversing spur on the east side of the line. It was reached from the north.
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Opened by Deans and Moore. In 1900 the Edinburgh Collieries Company rebuilt the colliery, abandoning pit no 1 and opening no 3.
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