From Tacitus accounts of the Roman general Agricola, it is known that the Romans were daunted by Portlethen Moss, Netherley Red Moss, Cookney Moss and other local bogs that hindered travel. This is also evidenced by the Roman Camp of Raedykes having been established immediately south of this cluster of mosses; the Romans not being able to progress further north, turned inland toward Netherley.The Portlethen Moss is near the Grampian Mountains.
Tacitus' accounts of Agricola and the Roman presence in Scotland highlight the challenges posed by bogs like Portlethen Moss and Netherley Red Moss, which hindered travel and forced the Romans to turn inland towards Netherley. The location of the Roman Camp of Raedykes near these bogs suggests their impact on Roman military operations.