North American Railroads.zip is a beta file of the Minecraft resource pack North American Railroads - Immersive Railroading, made for Minecraft 1.12, 1.15, 1.16, 1.11, 1.14, 1.10. It was published on August 9, 2020 and is 0.9 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 North American Railroads - 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.