It lies in the central plain of Yorkshire, on the river Ure near its confluence with the Swale.
A and B, mycelium (m), the mix t ure over the affe c ted with haustoria (h).
The small river Bain, joining the Ure near Askrigg, forms a pretty lake called Semerer or Semmer Water, 4 m.
It is pleasantly situated at the confluence of the streams Laver and Skell with the river Ure, which is crossed by a fine bridge of nine arches.
When the site of the Great North Road was altered, towards the end of the 11th century, a bridge was built across the Ure, about half a mile above the Roman bridge at Aldborough, and called Burgh bridge or Ponteburgem.