List of Sites of Special Scientific Interest in South Yorkshire

This is a list of Sites of Special Scientific Interest (SSSIs) in South Yorkshire, United Kingdom. As of 2009^[update], There are 35 sites designated within this Area of Search, of which 18 have been designated due to their biological interest, 14 due to its geological interest, and 3 for both biological and geological interest. In England the body responsible for designating SSSIs is Natural England, which chooses a site because of its fauna, flora, geological or physiographical features. Natural England took over the role of designating and managing SSSIs from English Nature in October 2006 when it was formed from the amalgamation of English Nature, parts of the Countryside Agency and the Rural Development Service. Natural England, like its predecessor, uses the 1974–1996 county system and as such the same approach is followed here, rather than, for example, merging all Yorkshire sites into a single list. Natural England produces citation sheets for each SSSI and are the main source of information for this list.

South Yorkshire's geography can be split into different types. The very west of South Yorkshire is part of Dark Peak which is part of the Peak District National Park and lies to the west of Sheffield. This extensive moorland is one of the largest semi-natural areas in England and has broad plateaus with rocky outcrops interspersed with valleys. Moving east the land elevation drops with a transition from the peak district to coal fields. Much of this area of transition has seen urban development with Sheffield being a good example.

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