What to check on an old peat hag before stepping across: simple safety and repair fixes

Peat hags — those dark, ragged edges of peatland where the turf has slumped away — catch me every time. They’re beautiful in a bruised kind of way: layers of peat and roots revealed like the rings of a landscape’s memory. They’re also deceptively dangerous. Over the years I’ve learned to treat every hag as a small cliff: you don’t step across it without a quick set of checks and sometimes a few simple repairs to keep things safe for you and for the bog.

Why a quick check matters

Peat is an organic, fibrous material that behaves differently to rock or packed soil. It can look solid from a distance, but recent rain, burrowing animals or freeze–thaw cycles can undermine a slab so that it breaks away under your weight. Beyond the personal risk of a fall, stepping on a fragile edge accelerates erosion and damages a habitat that takes decades or centuries to build. So I always pause at a hag and run through the same mental checklist: assessment, choice of crossing, and minimal-impact repairs if needed.

First-look assessment

The first thing I do is stand back a couple of metres and look. I want to read the face of the hag — the colour bands, the root tufts, the undercut. Small clues tell you whether the edge will hold a foot or not.

Surface vegetation: Is there intact turf up to the edge, or is the vegetation already hanging over? Healthy Sphagnum and sedges right to the lip generally indicate stability; bare, flaking peat does not.

Undercutting: If water has eaten a hollow under the lip and there’s a pronounced overhang, that’s a red flag.

Vertical cracks: These often run perpendicular to the edge and can split under weight — test for them visually.

Saturation: After heavy rain the peat will be softer and more likely to shear; frost-thawed peat can also be unstable.

Where possible I approach from different angles. Sometimes what looks safe from one side shows clear fractures from another.

Testing the edge safely

I never test a hag by standing on the very lip. Instead, I use a long trekking pole or a stout stick (I like my Black Diamond poles for reach and strength) to probe. Key steps:

Probe from the edge: Push the pole horizontally into the face to feel for voids, loose material or hollow sounds.

Weight test off the lip: Place one foot well back and lean your weight onto the pole with a slow transfer — if the turf compresses, skids, or crumbles, don’t cross there.

Look for alternative lines: A narrow neck of turf may look tempting but is often the first to go. Wider, vegetated crossings are safer.

Choosing how to cross

If the edge looks robust — rooted, not undercut, without deep cracks — I’ll cross directly but cautiously. If not, I consider the options:

Walk around: The simplest, lowest-impact choice if terrain allows. Even an extra ten minutes is worth avoiding damage or a spill.

Find a natural bridge: Sometimes tussocks, tree roots or a thicker section of peat make a safer line.

Make a stepping-stone: For very narrow gaps over firm peat I’ll place a long stick or a spare trekking pole across to create a temporary handhold — never a permanent fix.

Turn back or reroute: If the peat hag spans a stream and there’s no safe crossing, change the route. Peatland recovery is not worth taking a risk.

Simple repair fixes I carry

I’m not a contractor and I wouldn’t pretend to stabilise a collapsing bank properly. But there are small, reversible repairs that reduce immediate risk and erosion until the site can recover naturally. My kit is minimalist and designed for low-impact work:

Item	Use
Sturdy trekking pole (or spare)	Probe hollows, make temporary handhold or bridging support
Lightweight folded saw or small spade	Cut back a dangerously overhanging turf to a safer angle; tidy edges
Biodegradable jute mat / coir roll (small)	Temporary covering to reduce erosion on highly trafficked short sections
Natural-fibre cord (hemp)	Tie down loose turf temporarily; avoid plastic which lasts forever in peat

These are the tools I find useful. If you’re carrying a small spade (I like the lightweight MSR or Vango options), you can trim a dangerous overhang back to an angle that’s less likely to snap — but only remove what’s necessary. Cutting back living peat is destructive if done excessively.

How I make a small, low-impact repair

Here’s a simple, reversible technique I’ve used when a narrow hummock is the only line across and a small section is starting to flake:

Clear loose flakes: Gently remove small, unstable fragments and pack them to one side — don’t throw them downhill where they can wash away.

Trim the lip: With a small saw or spade, pare the very outer edge back to a stable angle (about 45° or less). This reduces the lever effect that makes slabs snap.

Lay a bridge: Place a long, straight branch or one of your poles across the gap as a temporary stepping or balancing aid. If you have jute, lay it over the repaired lip to reduce trampling.

Tie down loose turf: Use short lengths of hemp cord to anchor any small, loose pieces back into place. Keep knots simple and accessible for removal.

Everything I do is intended to be temporary, minimal and reversible. If you find yourself doing more than a few minutes’ work on a hag, you’re probably in the wrong place — contact local land managers or conservation groups who can assess and, if appropriate, carry out proper restoration.

Safety behaviours while crossing

Even with a cautious repair, treat the crossing like a small scramble:

Keep your centre of gravity low; take deliberate, slow steps.

Use three points of contact when balancing on a pole or branch.

Unclip your hip-belt so you can shed your pack if you fall into soft peat.

Cross one person at a time to avoid loading the same spot.

Watch for running water at the base; a fall into a waterlogged hollow can be chilling and dangerous.

When to leave it alone and report

There are times when the best thing I can do is not touch the peat and instead report the problem. Large collapses, deep undercuts over streams or any damage within a designated or protected site should be passed on. Many peatland projects — from local Wildlife Trusts to national peat restoration programmes — welcome notes, photos and grid references so they can prioritise fixes.

Walking Britain’s edges responsibly means thinking beyond our next step. A peat hag will outlast our boots, and with a few minutes’ attention and the right small kit we can keep ourselves safe while leaving the place ready to grow again.