Aire Gap

Aire Gap
Floor elevation	179 metres (587 ft)
Length	approx 40 kilometres (25 mi) 128 degrees
Width	approx 20 kilometres (12 mi)
Depth	average 300 metres (980 ft)
Geology
Type	Glacial U-shaped
Age	Carboniferous through Pleistocene
Geography
Location	Craven District, North Yorkshire, England
Population centers	(Settle), Hellifield, Gargrave, (Colne), Skipton, Sutton-in-Craven, Keighley
Borders on	Craven Fault and north edge of South Pennines
Coordinates	54°0′0″N 2°10′0″W / 54.00000°N 2.16667°W / 54.00000; -2.16667
Traversed by	A65 road, "Little" North Western Railway, Leeds and Liverpool Canal

Aire Gap is a pass through the Pennines in England formed by geologic faults and carved out by glaciers. The term is used to describe a geological division, a travel route, or a location that is an entry into the Aire river valley.