Eboracum workshops growing up outside the fortress to supply the needs of the 5,000 troops garrisoned there. Production included military pottery until the mid-3rd century, military tile kilns have been found in the Aldwark-Peasholme Green area, glassworking at Coppergate, metalworks and leatherworks producing military equipment in Tanner Row. In the Roman period, Eboracum was the major manufacturing centre for Whitby Jet. Known as "gagates" in Latin, it was used from the early 3rd century as material for jewelry and was exported from here throughout Britain and into Europe. Examples found in York take the form of rings, bracelets, necklaces, and pendants
Eboracum depicting married couples and the Medusa. There are fewer than 25 jet pendants in the Roman world, of which six are known from Eboracum. These are housed in the Yorkshire Museum. The true paths of all original Roman roads leading out of Eboracum are not known, although eleven have been suggested. The known roads include Dere Street leading North-West from the city through Clifton towards the site of "Cataractonium" (modern Catterick), Cade's Road Towards "Petuaria" (modern Brough), and Ermine Street towards "Lindum" (modern Lincoln). A road bypassing the south wall of the fortress, between the fortress and the River Ouse