Penn's Rocks is a 10.2-hectare (25-acre) biological Site of Special Scientific Interest north of Crowborough in East Sussex.[1][2]

Penn's Rocks
Site of Special Scientific Interest
LocationEast Sussex
Grid referenceTQ 521 348[1]
InterestBiological
Area10.2 hectares (25 acres)[1]
Notification1985[1]
Location mapMagic Map

This site is a steep sided valley on sandstone with many mosses and liverworts, which is a nationally rare habitat. Uncommon species include Orthodontium gracile, Bazzania trilobata, Saccogyna viticulosa and Harpanthus scutatus.[3]

This site is in four separate areas. A footpath runs through one of them but the others are private land.

References

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  1. ^ a b c d "Designated Sites View: Penn's Rocks". Sites of Special Scientific Interest. Natural England. Retrieved 23 January 2019.
  2. ^ "Map of Penn's Rocks". Sites of Special Scientific Interest. Natural England. Retrieved 23 January 2019.
  3. ^ "Penn's Rocks citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 23 January 2019.

51°05′31″N 0°10′16″E / 51.092°N 0.171°E / 51.092; 0.171