King Robert's great charter of 1319, allowed the citizens of Aberdeen to own the Burgh, the forests and all the revenue from the land within the borders. The revenue from the Freedom Lands is known as "The Common Good Fund".
The Burgh borders were marked by 67 March Stones the first being Alpha and the last Omega. The stones can still be found today, Alpha is near Old Ford Road on the banks of the Dee, whilst Omega is in open ground by the Bridge of Don.
March Stone 57 is located outside 55 Powis Terrace
Described in 1698 as at the Croft of Pickelltillin, in the midst of which croft there are two march stones markt with Sanct Peter’s key with carnes
The cache is on the opposite side of the road from the March Stone
A guide to the March Stone Trail is available at www.aberdeencity.gov.uk/trails