A very large marching camp that is about 541 x 472 m.
This is a so-called Stracatho style marching camp and is thought to date to the Agricolan campaign of 82-83. These camps include Dalswinton, Castledykes, Menteith, Dalginross, Ythan Wells, Auchinhove and Inverquharity. All of them have distinctive double clavicula protuding entryways. The right clavical projects outward in a straight line, while the left one projects in an arc. This type entry was first observed at the Stracatho Marching Camp.
http://canmore.rcahms.gov.uk/en/site/65895/details/dalswinton+bankfoot/
http://canmore.rcahms.gov.uk/en/site/65942/details/dalswinton+bankfoot/
http://canmore.rcahms.gov.uk/en/site/65954/details/dalswinton+bankfoot/
http://roman-britain.co.uk/places/dalswinton_camps.htm
http://www.euppublishing.com/doi/pdfplus/10.3366/gas.1976.4.4.1