The edges of Powys are not fixed in the way a line on a map might suggest. They shift, depending on what you are looking at.

To the east, the border with England is the most clearly defined. Offa’s Dyke runs through parts of it, marking an attempt to create a boundary. Even so, the reality has always been more fluid. Settlements on either side share characteristics, and movement across the border has been continuous.

Further south, the transition into what is now South Wales is less precise. The landscape begins to change — more industrial in places, more densely settled — but there is no single point where one ends and the other begins.

To the west, the land moves towards the coast, and with it comes a different sense of connection. Routes begin to align differently, and the influence of coastal settlements becomes more apparent.

To the north, the shift is again gradual. The land rises and falls in ways that feel familiar, but connections begin to orient elsewhere.

What becomes clear is that Powys is defined as much by these transitions as by what sits within it. It does not end abruptly. It changes, often slowly, into something else.

Understanding the edges helps explain the centre.