This is a route-map template for a UK railway.
Note: Per consensus and convention, most route-map templates are used in a single article in order to separate their complex and fragile syntax from normal article wikitext. See these discussions [1],[2] for more information. The map includes the Severn and Wye Railway (later jointly operated by both the Great Western Railway (GWR) and the Midland Railway) and the Bullo Pill Railway (later the GWR Forest of Dean Branch) in the Forest of Dean, England.
To use in collapsed form, use {{Railways of the Forest of Dean|collapse=yes}}