Truro - Geography

Geography

Truro is located in the centre of western Cornwall approximately 9 miles (14 km) from the south coast on the confluence of the rivers Kenwyn and Allen, which both combine to become the Truro River, one of a series of creeks, rivers and drowned valleys leading into the River Fal and then onto the large natural harbour of Carrick Roads. The river valleys form a bowl surrounding the city on the north, east and west and open to the Truro River in the south. The fairly steep-sided bowl in which Truro is located, along with high precipitation swelling the rivers and a spring tide in the River Fal, were major factors in the cause of floods seen in 1988 which caused large amounts of damage to the city centre. Since then, flood defences have been constructed around the city, including an emergency dam at New Mill on the River Kenwyn and a tidal barrier on the Truro River, to prevent future problems.

The city is surrounded by a number of protected natural areas such as the historic parklands at Pencalenick, and larger areas of ornamental landscape, such as Trelissick Garden and Tregothnan further down the Truro River. An area south-east of the city, around and including Calenick Creek, has been designated an Area of Outstanding Natural Beauty. Other protected areas include an Area of Great Landscape Value comprising agricultural land and wooded valleys to the north east, and Daubuz Moors, a Local Nature Reserve located alongside the River Allen close to the city centre.

Truro has mainly grown and developed around the historic city centre in a nucleated fashion along the slopes of the bowl valley, with an exception being fast linear development along the A390 to the west, towards Threemilestone. As Truro has grown, it—like any other city—has incorporated a number of settlements, turning them into suburbs or unofficial districts. These include Kenwyn and Moresk to the north, Trelander to the east, Newham to the south, and Highertown, Treliske and Gloweth to the west as a result of the far stretching development in that area.