Charter evidence of a permanent enclosure by the River Tame.
This is a significant gain by the Mercians owing to the strategic importance of Tamworth as Offa's old capital of Mercia and it's proximity to the still functioning bishopric at Lichfield.
The area of the burgh - which covered approximately 50 acres - is roughly bounded by the rivers Tame and Anker in the south, Marmion Street in the east, Albert Road and Hospital Street in the north and Aldergate and Holloway in the west.
The city center is located just west of the river Moldeelva, which runs into the city from the north, originating in Moldevatnet (lake), through Moldedalen (valley).
Although the river is minor and seasonal, there were several sawmills along it in the 16 and 1700s.
The rivers of the area, the Rauma, Driva, and Eira, already legendary among the British gentry in the mid-1800s, abound in salmon, sea trout and sea char.