Port St. George is the seaward terminus of the Clyre Valley Railway; a fictitious 2'3" gauge railway set somewhere in the south west of England.

It is early summer, somewhere in the late 1920's and traffic on the line is brisk. Passenger traffic is frequent throughout the day, principally in connection with coastal steamers and mail boats. Equal emphasis is placed on freight traffic with general merchandise, coal and livestock being handled in the goods yard as well as fish at the covered loading dock on the quayside.

The line's principal freight traffics, however, are granite chipping's and china clay. Worked in "block" trains these are shunted to the quayside to the off-stage part of the quay on a regular basis.

Shortly after leaving the port, trains pass the locomtive depot and halt at Wootton Major. Based very loosely on Towyn Pendre shed on the Tallyllyn Railway, this small and cramped building serves as the principal loco depot for the line. Most locos return here for coal and water during the day, only the harbour shunting engine remaining at Port St George throughout.

The layout design is freelance and designed to meet the expected traffic needs of the railway. Scenery is built to the methods explained in Barry Norman's "Landscape Railway Modelling". Rolling stock is primarily kit built with a few scratch built items thrown in for good measure. At present the station, harbour area and approaches of Port St George are portrayed, together with the Locomotive shed at Wootton Major. Two off-stage fiddle yards represent, at one end, the remaining quayside area and town while at the other, the remainder of the railway.