Knap House Quarry, Birdlip

Knap House Quarry, Birdlip
Site of Special Scientific Interest
	Disused quarry, Birdlip Hill
	Location within Gloucestershire
Location	Gloucestershire
Grid reference	SO925147
Coordinates	51°49′53″N2°06′34″W / 51.831313°N 2.109516°W Coordinates: 51°49′53″N2°06′34″W / 51.831313°N 2.109516°W
Interest	Geological
Area	1.80 hectare
Notification	1974
	Natural England website

Last updated February 04, 2023

Knap House Quarry, Birdlip (grid reference SO925147 ) is a 1.80-hectare (4.4-acre) geological Site of Special Scientific Interest in Gloucestershire, notified in 1974.^[1]^[2] The site is listed in the 'Cotswold District' Local Plan 2001-2011 (on line) as a Key Wildlife Site (KWS) and a Regionally Important Geological Site (RIGS).^[3]^[4]

Location and geology

The quarry is in the Cotswold Area of Outstanding Natural Beauty and was formerly notified as Birdlip Quarry. It is 400 m north of Birdlip, and about 8 km south-west of Gloucester City. It lies within woodland and is now disused.^[1] The Cotswold Commons and Beechwoods notified Site of Scientific Interest lies to the south-west.

The exposures are of Middle Jurassic sediments of the Aalenian and Bajocian Stages, and are nationally important for research of the period in the United Kingdom. The strata are Lower Inferior Oolite which is overlain with Upper Trigonia Grit. There are no Middle Inferior Oolite strata present. This is as a consequence of a period of uplift and warping of the crust. This site is a significant example of the effects of this tectonic occurrence.^[1]

Related Research Articles

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Puckham Woods is a 32.38-hectare (80.0-acre) biological Site of Special Scientific Interest in Gloucestershire to the east of Cheltenham near Whittington, notified in 1954. The site is listed in the 'Cotswold District' Local Plan 2001-2011 as a Key Wildlife Site (KWS).

Rodborough Common is a 116.0-hectare (287-acre) biological and geological Site of Special Scientific Interest in Gloucestershire, notified in 1954. The site is listed in the ‘Stroud District’ Local Plan, adopted November 2005, Appendix 6 as an SSSI and a Regionally Important Geological Site (RIGS). The Common is also a Special Area of Conservation (SAC) under the EU Habitats Directive

References

1 2 3 Natural England SSSI information on the citation
↑ Cotswold District Local Plan, Appendix 1, Sites of Special Scientific Interest Archived 2012-03-26 at the Wayback Machine
↑ Cotswold District Local Plan, Appendix 2, Key Wildlife Sites Archived 2013-10-13 at the Wayback Machine
↑ Cotswold District Local Plan, Appendix 3, Regionally Important Geological Sites Archived 2012-03-26 at the Wayback Machine

SSSI Source

External links

Natural England (SSSI information)

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[NE_citation-1] 1 2 3 Natural England SSSI information on the citation

[2] Cotswold District Local Plan, Appendix 1, Sites of Special Scientific Interest Archived 2012-03-26 at the Wayback Machine

[3] Cotswold District Local Plan, Appendix 2, Key Wildlife Sites Archived 2013-10-13 at the Wayback Machine

[4] Cotswold District Local Plan, Appendix 3, Regionally Important Geological Sites Archived 2012-03-26 at the Wayback Machine

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v t e Geological Sites of Special Scientific Interest in Gloucestershire
Summarised data for all sites (biological and geological)
Alderton Hill Quarry Bull Cross, The Frith and Juniper Hill Campden Tunnel Gravel Pit Cleeve Common Coaley Wood Quarries Crickley Hill and Barrow Wake Easter Park Farm Quarry Edgehills Quarry Foss Cross Quarry Garden Cliff Hampen Railway Cutting Haresfield Beacon Harford Railway Cutting Hobbs Quarry Hornsleasow Quarry Huntsman's Quarry Jackdaw Quarry Kemble Railway Cuttings Knap House Quarry, Birdlip Land Grove Quarry, Mitcheldean Leckhampton Hill and Charlton Kings Common Longhope Hill Lower Woods Lower Wye Gorge Lydney Cliff May Hill Meezy Hurst Minchinhampton Common New Park Quarry Nibley Knoll Notgrove Railway Cutting Oakenhill Railway Cutting Puddlebrook Quarry River Wye Robin's Wood Hill Quarry Rodborough Common Salmonsbury Meadows Scully Grove Quarry Severn Estuary Slade Brook Stenders Quarry Stony Furlong Railway Cutting Swift's Hill Upper Severn Estuary The Malvern Hills Purton Passage Selsley Common Upper Wye Gorge Veizey's Quarry Wainlode Cliff Wellacre Quarry Wood Green Quarry & Railway Cutting Wotton Hill
Neighbouring areas Avon Herefordshire Oxfordshire Wiltshire Worcestershire