At the turn of the 20th century the rail network extended to over 23,000 miles, very nearly the circumference of the world the greatest length it was ever to achieve. Some urban routes had closed and later, hundreds of rural lines and stations succumbed to the Beeching axe. This map shows the network in its heyday before the decline commenced.
Bradshaw's Railway Map 1907 (9781908402134)
Old House Books