Heysham topographic map

On the River Ribble, the tidal bore acts as a hydrodynamic "front," marking the abrupt transition from the prolonged low-water stand to a compressed flood tide. While the Irish Sea rises for over six hours, the narrowing 19th-century training walls funnel the tide into a singular surge, compressing the flood…

Average elevation: 669 ft

Average elevation: 190 ft

Geographical coordinates: 53° 46' 0" North, 2° 21' 0" West. Height above sea level: there is a spot height outside the Market Hall which is 133.5 metres (438 ft) the benchmark on the side of the neighbouring Town Hall is 441.10 feet (134.45 m). The highest height in the town is 320 metres (1,050 ft) which is…

Average elevation: 653 ft

Average elevation: 427 ft

Average elevation: 276 ft

Average elevation: 387 ft

Average elevation: 669 ft

Average elevation: 371 ft

Average elevation: 276 ft

The town lies in a natural three-forked valley at the confluence of the River Brun and the River Calder, surrounded by open fields, with wild moorland at higher altitudes. To the west of Burnley lie the towns of Padiham, Accrington and Blackburn, with Nelson and Colne to the north. The centre of the town…

Average elevation: 810 ft

Average elevation: 896 ft

Average elevation: 148 ft

Average elevation: 823 ft

Average elevation: 243 ft

Average elevation: 722 ft

Average elevation: 85 ft

Average elevation: 374 ft

Average elevation: 26 ft

Average elevation: 322 ft

Average elevation: 902 ft

Average elevation: 128 ft

Average elevation: 932 ft

Average elevation: 39 ft

Average elevation: 230 ft

The geology and topography of the village lent itself to urbanisation and domestic industries; primitive weavers' cottages, coal pits and stone quarries were propelled by Bacup's natural supply of water power in the Early Modern period. The adoption of the factory system, which developed into the Industrial…

Average elevation: 1,106 ft

Average elevation: 16 ft

Average elevation: 135 ft

Average elevation: 33 ft

Average elevation: 341 ft

Average elevation: 456 ft

Average elevation: 141 ft

Average elevation: 174 ft

Average elevation: 715 ft

Average elevation: 942 ft

Average elevation: 1,263 ft

Average elevation: 364 ft

Average elevation: 856 ft

Average elevation: 79 ft

Average elevation: 184 ft

Average elevation: 98 ft

Average elevation: 10 ft

Average elevation: 797 ft

Average elevation: 837 ft

Average elevation: 518 ft

Average elevation: 922 ft

Average elevation: 190 ft

Average elevation: 486 ft

The River Irwell catchment area extends from the moors above Bacup to the Manchester Ship Canal. The climate of the catchment area is wetter than the UK average, with rainfall of 1,456 millimetres (57.3 in) per annum compared to 1,231 millimetres (48.5 in) per annum, and the rivers quickly respond to rainfall.…

Average elevation: 584 ft

Average elevation: 863 ft

Average elevation: 758 ft

Average elevation: 636 ft

Average elevation: 85 ft

Average elevation: 243 ft

Average elevation: 1,001 ft

Average elevation: 33 ft

Average elevation: 584 ft

Average elevation: 82 ft

Average elevation: 43 ft

Average elevation: 26 ft

Average elevation: 62 ft

Average elevation: 961 ft

Average elevation: 39 ft

Average elevation: 233 ft

Average elevation: 600 ft

Average elevation: 62 ft

Average elevation: 157 ft

Average elevation: 10 ft

Average elevation: 646 ft

Average elevation: 292 ft

Average elevation: 292 ft

Average elevation: 72 ft

Average elevation: 75 ft

Average elevation: 341 ft

Average elevation: 256 ft

Average elevation: 801 ft

Average elevation: 538 ft

Average elevation: 46 ft

Average elevation: 312 ft

Average elevation: 69 ft

Average elevation: 98 ft

Average elevation: 226 ft

Average elevation: 26 ft

Average elevation: 200 ft

Average elevation: 404 ft

Average elevation: 636 ft

Average elevation: 79 ft

Average elevation: 7 ft

Average elevation: 43 ft

Average elevation: 128 ft

Average elevation: 276 ft

Average elevation: 607 ft

Average elevation: 489 ft

Average elevation: 774 ft

Average elevation: 528 ft

Average elevation: 72 ft

Average elevation: 43 ft

Average elevation: 46 ft

Average elevation: 253 ft

Average elevation: 876 ft

Average elevation: 39 ft