Begin With Ground You Already Know

The best place to learn to recognise a ley line is not a remote moor or a celebrated stone circle. It is the parish you walk every week — the footpath behind the chapel, the lane that runs arrow-straight between two hedgebanks, the ridge you can see from your kitchen window. Familiarity is a diviner's greatest asset. When you know how a place feels on an ordinary wet Tuesday, you notice at once when something shifts.

Spend a few weeks walking that patch deliberately before you go looking for alignments. Note where the ground rises, where water gathers, where the wind does something odd and where you instinctively slow down. Those small observations become the raw material for everything that follows. West Wales rewards this slowly — its old routes are often buried under gorse, conifer plantation or a century of improved pasture.

Read the Map Before You Read the Ground

Take a 1:25,000 Ordnance Survey Explorer sheet of your local area and look for straight lines that are already drawn on it. Old churches, chapels, standing stones, burial mounds, fords, crossroads and ancient yews are the classic markers. Plot them, then see what falls into line.

A practical method that works well in Carmarthenshire, Ceredigion and Pembrokeshire alike:

• Mark every old church, stone, tumulus and holy well within a few miles onto tracing paper laid over the map.
• Lay a ruler between pairs of prominent sites and check whether a third or fourth sits on the same bearing.
• See whether the line follows a hedge, a track, a parish boundary or a ridge — features that usually predate enclosure.
• Record the bearing in degrees. Alignments that repeat across a landscape are far more interesting than a single coincidence.

Alfred Watkins called these "old straight tracks" in the 1920s. Most are probably a mix of genuine ancient routeways, later boundary lines and plain chance. That ambiguity is part of the pleasure — you are reading a landscape, not solving a puzzle with one answer.

What to Look For on the Ground

The ground confirms what the map suggests. In woodland, look for long, unnaturally straight rides that ignore the contours, and for boundary banks of earth and stone running dead straight through stands of oak and ash. Ancient hedgerows are a good sign: a hedge with six or seven woody species — hazel, hawthorn, field maple, dogwood, spindle — is likely to be centuries old, and may sit on something older still.

Watch for these markers as you walk:

• Churches and chapels set on low mounds, especially with circular churchyards and a yew at the gate.
• Standing stones reused as gateposts, bridge parapets or field corners.
• Springs, wells and fords, which turn up on alignments with striking regularity.
• Trees that twist, fork or lean oddly along a single line of hedgerow.
• Ridges and spring lines where the land changes character underfoot.

Walking the Line: Field Craft

Sighting is the core skill. Stand on one marker, face the next, and let your eye run along the bearing to the furthest visible point. Then walk it. Follow the line across a field, through a gate, into the trees, and note what interrupts it: a stream crossing, a sudden dip, a band of nettles, a change in the sound of your own footsteps.

Water crossings matter. Many traditional alignments cross streams at right angles or pass close to springs. Notice, too, whether the line hugs the crest of a ridge or runs just below it where the ground drains. Both patterns recur, and once you have seen one on your own patch you will spot others.

Using Rods and a Pendulum

Dowsing is a way of paying attention, not a party trick. Use a pair of L-rods or a pendulum loosely held, and walk the suspected line with a clear, single question in mind. Keep your grip relaxed, breathe normally, and do not chase every twitch — tiredness, hunger and dehydration all produce false responses.

Test your rods against things you already know: a buried water pipe, an underground stream, a field drain. Building that baseline of honest feedback is what separates a useful dowser from an enthusiastic one. Treat every result as a prompt to look more closely at the ground, never as proof of anything.

Keep a Record and Return Often

Carry a small notebook. For each outing, note the date, weather, ground conditions, grid references, what you saw and what you felt. Return to the same line in February when the bracken is down and again in July when the hedges are thick. Winter reveals; summer confirms. Over a year or two, your own patch of West Wales will teach you more about ley lines and earth energies than any book — and you will never see a familiar lane in quite the same way again.