Record Details

NHER Number:13947
Type of record:Monument
Name:Undated subterranean gallery, Black Horse Inn, (Great) Magdalen Street


When sinking a well in the yard of the Black Horse Inn around 1820, a subterranean gallery was discovered. The date and purpose of this gallery are unclear, but it may have resulted from extraction of chalk or flint in the past.

Images - none


Grid Reference:TL 8731 8312
Map Sheet:TL88SE

Full description

Around 1820.
A well sunk in the yard of the Black Horse Inn, Great Magdalen Street, penetrated a subterranean gallery in the chalk. No dating evidence was recovered and it is unclear whether this was made for working flint in prehistoric times or to obtain chalk for building at some later date.
Revealed section was 15.3m (50ft) long, 6.1m (20ft) high and 3.1m (10ft) wide. Another gallery ran off to the south, but was blocked when the well was sunk.
See (S1) quoted in (S2).

Monument Types

  • CHALK PIT? (Unknown date)
  • FLINT MINE (Unknown date)
  • FLINT MINE? (Prehistoric - 1000000 BC? to 42 AD?)
  • CHALK PIT? (Medieval to 19th Century - 1066 AD? to 1900 AD?)
  • FLINT MINE? (Medieval to 19th Century - 1066 AD to 1900 AD)

Associated Finds - none

Protected Status - none

Sources and further reading

---Record Card: NAU Staff. 1974-1988. Norfolk Archaeological Index Primary Record Card.
<S1>Monograph: Leigh-Hunt, A.. 1870. The Capital of the Ancient Kingdom of East Anglia.. p 162.
<S2>Article in Serial: Bruce-Mitford, R. L. S. 1952. A Late-Medieval Chalk-Mine at Thetford. Norfolk Archaeology. Vol XXX pp 220-222. pp 221-222.

Related records - none

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