Metal detecting maps for Denmark

A detecting map isn't one map but several layers stacked together — each with its own answer to where you should search. LiDAR shows the terrain, historical maps show the past, the aerial photo shows the present, and parcel boundaries and protected zones show whom to ask and where you can't dig. Here are the layers a good detecting map is made of, what each one tells you, and how they work together in the field.

In short

  • A detecting map is several map layers stacked together — not one map.
  • LiDAR terrain shows barrows, hollow ways and field boundaries in the terrain itself.
  • Historical maps show vanished farms, old roads and place-names.
  • Aerial photos show the ground as it looks now — crops, marks and traces.
  • Parcel boundaries show whose land you're on, so you know whom to ask.
  • Protected zones show where you can't dig — monuments, dykes, §3 nature, and coastal and dune protection.
  • Muld gathers them all in one app; the core app is free, and the heavier layers are part of Muld+.

What is a detecting map?

There's no single "detecting map" you can look up. What a detectorist calls their map in practice is a stack of map layers — each with its own purpose — that you switch on and off over one another. Some point you to promising ground; others keep you on the right side of the rules. The strength is in having them in one place, so you can go from "where does it look promising?" to "what should I check before searching here?" without switching maps.

The layers you need

LiDAR terrain

A hillshade of the bare earth — the terrain with trees and vegetation stripped away. It reveals barrows, hollow ways and old field boundaries the aerial photo hides, and can even show terrain under woodland. Read more in our guide to LiDAR maps. Part of Muld+.

Historical maps

The old survey sheets from the 1800s and early 1900s show vanished farms, abandoned roads, mills and place-names — places where people were, and where things could be dropped or left behind. See our guide to historical maps. Part of Muld+.

Aerial photos

The modern aerial photo is your starting point: it shows the ground as it looks right now — crops, plough lines and the marks in a field that can hint at something beneath. The aerial photo is free in Muld; older years are part of Muld+.

Parcel boundaries

Cadastral parcel boundaries draw the lines between properties, so you can see where one owner's land ends and the next begins — and therefore whom to ask for permission. If you're a landowner yourself, see our guide for landowners.

Protected zones

Protected ancient monuments, stone and earth dykes, §3 nature, cultural-heritage areas and coastal and dune protection are drawn on the map, so you know where you can't dig before you set out. What the individual zones mean is in our guide to the rules.

How to read the layers together

The layers are strongest together. A typical trip starts at home:

By then you've gone from a map to a plan before you've even left home. None of the layers is a promise of finds — but together they're one of the best guides you can get.

Detecting maps in Muld

Muld gathers all the layers in one app, built for metal detecting in Denmark. You switch them on and off over one another and can compare then, now and the terrain at the same spot. The core app — aerial photo, protected zones, parcel boundaries, GPS tracking and DIME reporting — is free; the heavier layers like LiDAR terrain and the historical maps are part of Muld+.

The rules travel with you

A detecting map points you to places worth searching — but it doesn't change the rules. You need the landowner's permission before you start, and must stay clear of protected ancient monuments and other protected zones. Because Muld draws parcel boundaries and zones on the same map as the rest of the layers, you can see it all at once. Read our full guide to the rules for metal detecting in Denmark.

Official sources

This page is a plain-language introduction. The map layers are built on official public data from the Danish state — here are the sources behind them.

A note on accuracy. This page explains the map layers we use in Muld. If anything here looks out of date or wrong, tell us at hello@muld.dev and we'll fix it.

Get the whole detecting map with Muld

LiDAR terrain, historical maps, aerial photos, parcel boundaries and protected zones — gathered in one focused detecting app for Denmark. The core app is free; LiDAR and historical maps are part of Muld+.