Terrier.zip is a release file of the Minecraft resource pack LBSCR Terrier for Immersive Railroading, made for Minecraft 1.9.4, 1.14.4, 1.10.2, 1.7.10, 1.11.2, 1.12.2, 1.8.9, 1.13.2. It was published on January 16, 2020 and is 19.2 MB in size. For the full description, screenshots and every other version, visit the LBSCR Terrier for Immersive Railroading resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.