At first, services ran from Edgware to Finsbury Park, King's Cross and, via Snow Hill tunnel, to Ludgate Hill, Blackfriars and Loughborough Road on the south of the Thames. After 1869, trains terminated at Moorgate. Services could also run from Finsbury Park via the North London Railway to Broad Street after the Canonbury-Finsbury Park link opened in 1875. 21 trains a day ran to Finchley, usually in 24 minutes from Kings Cross, and 14 continued to Edgware. In 1870 the track between Finsbury Park and Finchley & Hendon (now Finchley Central) was doubled in preparation for the opening of the High Barnet branch and Muswell Hill branch.