Wretton SSSI is a 20.6-hectare (51-acre) geological Site of Special Scientific Interest north-east of Downham Market in Norfolk .[ 1] [ 2] Geological Conservation Review site.[ 3] [ 4]
This site exposes layer across the transition between the warm Ipswichian and the colder Devensian around 115,000 years ago. It has the richest assemblage of early Devensian vertebrate fossils in Britain, including arctic fox , bison and woolly rhinoceros .[ 5]
A footpath runs along the boundary of part of the site.
References 52°33′54″N 0°28′59″E / 52.565°N 0.483°E / 52.565; 0.483
Biological
Alderfen Broad Alderford Common Ant Broads and Marshes Aslacton Parish Land Badley Moor Barnham Cross Common Beeston Cliffs Beetley and Hoe Meadows Blo' Norton and Thelnetham Fens Booton Common Boughton Fen Breckland Farmland Breckland Forest Breydon Water Bridgham and Brettenham Heaths The Brinks, Northwold Broad Fen, Dilham Bryant's Heath, Felmingham Bure Broads and Marshes Burgh Common and Muckfleet Marshes Buxton Heath Calthorpe Broad Cantley Marshes Castle Acre Common Cawston and Marsham Heaths Cockthorpe Common, Stiffkey Coston Fen, Runhall Cranberry Rough, Hockham Cranwich Camp Crostwick Marsh Damgate Marshes, Acle Decoy Carr, Acle Dereham Rush Meadow Dersingham Bog Didlington Park Lakes Dillington Carr Ducan's Marsh East Harling Common East Ruston Common East Walton and Adcock's Common East Winch Common East Wretham Heath Eaton Chalk Pit Edgefield Little Wood Elm Road Field, Thetford Felbrigg Woods Field Barn Heaths, Hilborough Flordon Common Forncett Meadows Foulden Common Foxley Wood Fritton Common, Morningthorpe Gawdyhall Big Wood, Harleston Geldeston Meadows Great Cressingham Fen Great Yarmouth North Denes Grime's Graves Gunton Park Lake Hall Farm Fen, Hemsby Halvergate Marshes Hardley Flood Hedenham Wood Hilgay Heronry Hockering Wood Holly Farm Meadow, Wendling Holt Lowes Honeypot Wood Hooks Well Meadows, Great Cressingham Horningtoft Wood Horse Wood, Mileham Hunstanton Cliffs Islington Heronry Kelling Heath Kenninghall and Banham Fens with Quidenham Mere Leziate, Sugar and Derby Fens Limpenhoe Meadows Lower Wood, Ashwellthorpe Ludham - Potter Heigham Marshes Mattishall Moor Middle Harling Fen Narborough Railway Embankment New Buckenham Common North Norfolk Coast Old Bodney Camp Old Buckenham Fen Ouse Washes Overstrand Cliffs Paston Great Barn Poplar Farm Meadows, Langley Potter and Scarning Fens, East Dereham Potter's Carr, Cranworth Priory Meadows, Hickling Pulham Market Big Wood Redgrave and Lopham Fens Ringstead Downs River Nar River Wensum Rosie Curston's Meadow, Mattishall Roydon Common Scoulton Mere Sea Mere, Hingham Sexton Wood Shallam Dyke Marshes, Thurne Shelfanger Meadows Sheringham and Beeston Regis Commons Shotesham Common Shotesham-Woodton Hornbeam Woods Sidestrand and Trimingham Cliffs Smallburgh Fen Snettisham Carstone Quarry Southrepps Common Stanford Training Area Stanley and Alder Carrs, Aldeby Stiffkey Valley Swangey Fen, Attleborough Swannington Upgate Common Swanton Novers Woods Sweetbriar Road Meadows, Norwich Syderstone Common Thetford Golf Course and Marsh Thompson Water, Carr and Common Tindall Wood, Ditchingham Trinity Broads Upper Thurne Broads and Marshes Upton Broad and Marshes Warham Camp The Wash Wayland Wood, Watton Weeting Heath Wells Chalk Pit Westwick Lakes Weybourne Cliffs Whitwell Common Winterton-Horsey Dunes Wiveton Downs Wretham Park Meres Yare Broads and Marshes Geological
