Northumberland National Park former Anglo-Saxon kingdom which once covered much of Northern England. The national park lies totally within the boundaries of Northumberland. The Northumberland National Park covers a large area of Western Northumberland and borders the English county of Cumbria and the Scottish council area of The Scottish Borders. The national park encompasses much of the Cheviot Hills and adjoins the Southern Uplands of Scotland, which the hills are sometimes considered a part of. Since the Pennine Way runs through the national park, the Cheviot Hills are also considered a part of the northern Pennines although they are separated from the Cheviot
Northumberland Sandstone Hills flushes, mires, loughs and small reservoirs are dotted throughout the area. Fifteen percent of the NCA lies within the Northumberland National Park and it also contains one Special Protection Area - Holburn Lake & Moss - and 3 Special Areas of Conservation - Simonside Hills; Harbottle Moors; and River Tweed - as well as 18 Sites of Special Scientific Interest, the latter totalling 3,771 hectares. Its major watercourses are the rivers Aln, Till, Coquet, Fallowlees Burn, Font and Rede. Smaller hill ranges within the Northumberland Sandstone Hills include the Simonside Hills and Harbottle Hills in the south, and Alnwick Moor,