To connect the GWR line to the rest of the QR system, 4 connecting lines were proposed, described as Sections A to D. These were;  Section A – From Westgate on the Western Line to Eromanga  Section B – From Blackall to Windorah  Section C – From Winton to Springvale  Section D – From Malbon to an unnamed junction point. The Malbon – Duchess section is now part of the Mt Isa line. Section A – Construction started from a point 21 km south of Charleville, later called Westgate (as in Gateway to the west) in July 1911, and continued until 1917. The village of Quilpie (201 km from Westgate), on the west bank of the Bulloo River was established where construction halted, and became the terminus of the line. The line went west rather than south west as the Commissioner for Railways, following an inspection of the route in 1911, determined a due west route would serve better country. Section B – Construction started from Blackall, then the terminus of a branch line from the Central West line station of Jericho in August 1911, and continued until 1917, restarted in 1919 and being abandoned in December 1920, with the village of Yaraka (156 km from Blackall), becoming the terminus when construction ceased. Section C – Construction started from Winton, then the terminus of a branch line from the Mt Isa line station of Hughenden in 1913, the start having been delayed whilst the best place to cross the Diamantina River was established. The line initially headed west towards Elderslie as, in the case of Section A, the Commissioner had determined that alignment served better country. Rails laid for 37 km when construction was halted in February 1916 to focus on the construction of the Dobbyn line to provide copper ore for the war effort. Construction never restarted, and the line was never opened for traffic. The rails were salvaged as a job creation program in 1931. Section D – Construction started from Malbon, then a station on the Selwyn line, in August 1911, and continued until 1920, with the hamlet of Dajarra (112 km from Malbon) becoming the terminus when construction was abandoned, although work had extended 16 km beyond there. No construction work was undertaken for the GWR line itself. Today the main legacy of the GWR proposal is the 58 km Malbon – Duchess section of the Mt Isa line, which has been upgraded to main line standard and also services the Phosphate Hill line.