Derventio was an auxiliary fort, it probably housed a mounted ala or an infantry cohort. It is located immediately west of modern Adwick le Street (OS SE 553 008), astride Ermine Street (the Roman Ridge).
Category: Britain
Templeborough Roman Fort – Rotherham
Templeborough Roman Fort occupies a commanding position on the north bank of the River Don at Rotherham (OS grid SK 410 916), where the Magnesian Limestone ridge drops into the floodplain. Originally constructed in timber and earth in the mid–1st century AD, it was later rebuilt in stone and occupied—possibly intermittently—until the withdrawal of Roman authority in the early 5th century AD
Bishopdale
Bishopdale lies within the northern limb of the Askrigg Block, its underlying bedrock dominated by Carboniferous limestones with intermittent shales and sandstones of the Yoredale Series. The Great Scar Limestone, a thick, massive unit formed around 330 million years ago in a shallow tropical sea, underpins the dale’s steeper scarps and cliff lines, while the thinner-bedded limestones and intervening mudstones of the Yoredale Group create the characteristic terraced flanks on which many of Bishopdale’s field systems are laid out

