Passenger operators also have agreements with some of the heritage railways allow them to run special trains to connect with heritage railway events. Similarly heritage railway operators and railtour operators have reached arrangements to access the national network and run heritage trains, often steam powered, to and from the national rail network. As of 2007 this has extended to regular summer timetabled services on both the Stratford Upon Avon line in the Midlands and from Grosmont, North Yorkshire on the North Yorkshire Moors Railway to Whitby on the national rail network.