The Gask Ridge frontier system is the earliest Roman land frontier in Britain, built in the 70s AD, 50 years before Hadrian's Wall and 70 years before the Antonine Wall. Since German archaeologists have now re-dated the start of their frontier to the Trajanic period 20 years later, it now seems that the Gask system is the first Roman land frontier anywhere.
The Roman occupation of Strathearn saw the construction of the first recognizable road system as the occupants in their established tradition built a road system to enable communication between their various outposts . The road over the Langside from Braco to Comrie connected the main camp at Ardoch with the Dalginross glen blocker . The Gask Ridge represented a frontier of forts and watch towers stretching from Ardoch to Bertha where lies modern Inveralmond . The Romans constructed a military road to connect these various outposts and these have been partially excavated as part of an ongoing research programme undertaken by Dr DW Wooliscroft and a team of archaeologists many of whom are from Liverpool University .
The Story of Transport in the Strath