The 1867 Dolphinton [CR] line started from a junction which allowed trains from Carstairs station to join the branch. A box opened with the junction. The Dolphinton branch severed the south to east 1848 curve (out of use from around 1860) and a replacement curve was built from Strawfrank Junction to Dolphinton Junction in 1872.
The Dolphinton line closed in 1952 but the box remained in use due to the curve to Strawfrank.
The junction was renamed with a more appropriate name during electrification of the route. The box closed in 1972, replaced by a temporary box at Carstairs.
| Carstairs South Junction|
Carstairs No 1 Signal Box
Carstairs Sand Pit Signal Box
Pettinain Signal Box
|Location names in dark blue are on the same original line.|
|04/06/1945||Dolphinton Branch (Caledonian Railway)|
Dolphinton [CR] to Carstairs (Dolphinton Junction) closed to passengers.
|01/11/1950||Dolphinton Branch (Caledonian Railway)|
Dolphinton [CR] to Carstairs (Dolphinton Junction) closed to freight.
|/ /1972||Caledonian Railway|
Dolphinton Junction signalbox closed.
An Illustrated History of Carlisle's Railways
Border Country Branch Line Album
Caledonian Dunalastairs and Associated Classes (Locomotive Monograph)
Caledonian in LMS Days (Railways in Retrospect)
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Caledonian Railway Livery: The True Line Elegance and Style
Caledonian Railway Wagons & Non-Passenger Coaching Stock
Caledonian Routes 3: Stirling to Crianlarich - DVD - Oakwood Press
Caley to the Coast: Rothesay by Wemyss Bay (Oakwood Library of Railway History)
Callander & Oban Railway Through Time
Callander and Oban Railway (Library of Railway History)
Forgotten Railways: Scotland
Lanarkshire's Lost Railways
Old Carnwath: Including Braehead, Dolphinton, Dunsyre, Elsrickle, Kaimend, Libberton, Newbigging and Walston
Signalling the Caledonian Railway
The Caledonian Railway 'jumbos' the 18in. X 26in. 0-6-0s
The Caledonian, Scotland's Imperial Railway: A History
The Vanished Railways of Old Western Dunbartonshire (Britains Railways/Old Photos)
Through Scotland with the Caledonian Railway
Vanished Railways of West Lothian