1,450 ' x 1,050' temporary camp.
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, and 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/80931/details/glenmailen/