​The current and proposed West Wallsend Colliery mine layout is divided into the Northern and Western domains.

Longwall panels in the Northern Domain are aligned in a NE-SW direction. The main development headings are located under the M1 Motorway, and the adjacent coal pillars provide long-term stable support.

Longwall panels have been designed to optimise coal quality, extraction and minimise surface subsidence impacts. Each longwall block is approximately 175 metres wide with the longwall length varying between 1 – 3km.