County Cavan Westmeath (along their expanding network which was eventually to reach Sligo) and Cavan town. The first railway station to open in Cavan, was Cavan railway station in 1856. Many notable railway stations were built in the 19th century such as Kingscourt railway station and the Cavan and Leitrim Railway. The railways were an important part of the economic development of Cavan and carried passengers and freight to all over Ireland. The railways also helped the popularity of GAA in Cavan grow, spectators could travel easily between towns. After World War II, due to the shortage of coal in the country,
County Cavan springs near Bailieborough; the River Annalee which flows from Lough Sillan and joins the Erne; and the Cladagh river which rises from Cuilcagh and flows into Fermanagh. The Glyde and the Owenroe also source in Cavan. Cavan is known as 'The Lakeland County' and is reputed to contain 365 lakes. At , Lough Sheelin is the county's largest lake; it is situated in the south of the county and forms a three way border on its waters between counties Meath, Westmeath and Cavan. A large complex of lakes form in the north and west of Cavan into designated Specially Protected