Dragons LNER Steam V 1.6 (IR V 1.10+) is a beta file of the Minecraft resource pack Immersive Railroading - Emeralds British - LNER, made for Minecraft 1.12.2. It was published on December 22, 2022 and is 363.6 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the Immersive Railroading - Emeralds British - LNER resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.