The HO scale Missouri Pacific Joppa Subdivision layout

By Mitch Horner | December 8, 2023

| Last updated on February 18, 2026

This HO scale layout is inspired by Southern Illinois

Facts & features

Name: Missouri Pacific Joppa Subdivision
Scale: HO (1:87.1)
Size: 27′-3″ x 31′-6″
Prototype: Missouri Pacific
Locale: southern Illinois
Mainline run: 131 feet (visible), 222 feet (including helix and branch to start of Freeman mine)
Minimum radius: 30″
Minimum turnout: No. 6
Maximum grade: 2.5%