_The Midland_ enters the county during its passage through the Elstree
tunnel and runs nearly due N., having stations at Elstree, Radlett, St.
Albans and Harpenden. It has also a branch with stations at Hemel
Hempstead and Redbourn.

_The Great Northern_ main line crosses a small tongue of the county upon
which it has stations at Oakleigh Park and New Barnet. It then traverses
the Hadley Wood district of Middlesex, entering Hertfordshire again at
Warren Gate, and has stations at Hatfield, Welwyn, Knebworth, Stevenage
and Hitchin. From Hatfield it has three branches: (1) to Smallford and
St. Albans; (2) to Ayot, Wheathampstead and Harpenden; (3) to Cole
Green, Hertingfordbury and Hertford. At Hitchin it has a branch to
Baldock, Ashwell and Royston.

_The Great Eastern_ enters the county at Waltham Cross and skirts the
whole of the S.E. quarter, running on Essex soil from near the Rye House
almost to Sawbridgeworth. It has stations in Hertfordshire at Waltham
Cross, Cheshunt, Broxbourne, Sawbridgeworth and Bishop's Stortford. It
enters Essex again near the last-named station. It has also important
branches, (1) from Broxbourne to Rye House, St. Margaret's, Ware, and
Hertford; (2) from St. Margaret's to Mardock, Widford, Hadham, Standon,
Braughing, West Mill and Buntingford.

In addition, the Metropolitan Railway has an extension which crosses the
S.W. extremity of the county, having stations at Rickmansworth and
Chorley Wood. The Great Northern Railway has a branch from Finsbury Park
to High Barnet, with a station at Totteridge.