26 carefully positioned fire-pits indicate the location of a Roman marching camp situated near a river crossing and on a terrace of the river Ayr, South Ayrshire, Scotland. Radiocarbon dates from six of the pits provided dates ranging from 2 b.c. to a.d. 231, with an overlap around the Flavian period ( a.d. 77–86 to 90). There is some evidence for the clay superstructure of ovens, and botanical evidence for the fuel used and crops cooked. Supplementary Material available online at https://doi.org/10.1017/S0068113X19000059.