Koeltztown Tunnel

Koeltztown Tunnel
Overview
Official name	Argyle Tunnel (CRI&P Tunnel 2)
Line	Formerly the Kansas City to St. Louis, Missouri line
Location	Under the CR 541 country road, Osage County, Missouri, USA
System	Formerly Missouri Central Railroad
Operation
Opened	1903
Closed	1980
Technical
No. of tracks	Single

The Koeltztown Tunnel is a railway tunnel in Osage County, Missouri. It was built in 1903 by the Chicago, Rock Island and Pacific railroad. The tunnel is part of the former Kansas City to St. Louis, Missouri line, and is tunnel two of four. The line was once owned by the Missouri Central Railroad, but now is owned by the utility giant Ameren.