Metal detecting
Sweep a coil over parks, beaches and old yards and dig up coins, rings and lost keys - where you are allowed to, and filling every hole.
What it is like
Metal detecting is walking with a coil swept over the ground and listening. The detector beeps at metal and, on most machines, gives different tones for different kinds of metal, so with practice a coin sounds different from a pull tab. A pinpointer then finds the exact spot inside a small hole.
The hobby is as much about where as about how. National parks are off limits, historic objects on federal land are protected by law, and city and state parks set their own rules, so the best ground is often private land with the owner’s permission. Good detectorists are known for one habit above all: every hole is refilled and every piece of trash is carried out.
Detecting is mostly listening. A detector sends a field into the ground and reports metal with a tone, and on most machines also a number that hints at what the metal is - iron low, aluminum and pull tabs in the middle, silver and copper high. Learning what those signals mean on your own machine, in your own soil, is the core skill, and the reason experienced detectorists tell beginners to dig almost everything at first.
Where you search matters as much as how. The best finds come from places where people gathered and dropped things over a long time - old yards, picnic spots, fairgrounds, beaches - and many of those are private, which is why asking permission is part of the hobby. Old maps and local histories help pick the spots. Public land comes with rules that vary a lot, from outright bans in national parks to permits in some city parks.
After the detector, the hobby costs little: batteries or charging, the odd replacement digger or coil, and gas to reach sites. Clubs are worth joining for organized hunts on permitted land and for help identifying finds.
- A session
- Two to four hours outdoors.
- A week
- Usually a weekend outing; evenings in summer.
- Season
- All year where the ground is not frozen; beaches after storms and in the off-season.
Outdoors · Solo, For two, With kids, A club
Kinds and styles
Parks, sports fields and old lawns, searching for coins, jewelry and lost things; the usual start, and the place permission and park rules matter most.
Dry sand and the wet sand near the water, where rings and coins are lost every summer. Salt water needs a detector that handles it - many do.
Old farms, homesteads and fields with permission, for buttons, buckles, tokens and tools from past centuries. Records and the law on historic finds matter here.
Hunting for nuggets in known goldfields with high-frequency or pulse-induction detectors; specialized gear and claims rules.
Wading or diving in shallow water with a fully submersible detector and a long-handled sand scoop.
Searching for a lost ring or keys for someone else; many detectorists do this as a favor, and some clubs list members who help.
Is it for you?
You will probably love it if
- Long walks with a purpose and the odd surprise appeal to you
- You are curious about local history and old coins
- You do not mind digging up a lot of bottle caps for one good find
Maybe not, if
- Most of your local land is national park or protected
- Asking landowners for permission feels awkward
- Hours of beeps for pull tabs and foil would bore you
What to buy first
- 01Entry-level metal detectorA waterproof coil and simple discrimination are enough for parks, yards and beachesFind it on Amazon$224
- 02Waterproof pinpointerFinds the target inside the hole, so plugs stay small and tidyFind it on Amazon$105
- 03Digging tool with a serrated edgeCuts a neat plug of turf that goes back in without a traceFind it on Amazon$50
- 04Finds pouchOne pocket for finds, one for the trash you dig up and carry outFind it on Amazon$19
- Everything you need to beginAbout $5 a month after that$398
Typical US prices for entry-level gear, rounded. Last checked October 2026. How we get the numbers
The Amazon links open a search for that type of item, not a product chosen for us, and the prices in the list are our typical figures, or the listing of the shop a line names, not Amazon's price for any listing. If you buy through one we may earn a commission at no extra cost to you; as an Amazon Associate we earn from qualifying purchases.
What to buy next
- 01Wireless headphonesFaint, deep signals are much easier to hear, and the beeps do not bother anyone elseFind it on Amazon After a few outings
- 02Sand scoopA long-handled sifting scoop for wet and dry sandFind it on Amazon Beach detecting
- 03Smaller or larger search coilA small coil separates targets among trash; a large one covers more open groundFind it on Amazon Trashy or wide-open sites
- 04Knee padsMost recovery happens kneelingFind it on Amazon Regular digging
- 05Find boxes with compartmentsKeeps coins and small finds separate and labeled with where they came fromFind it on Amazon Once finds pile up
No prices here on purpose: these are later buys, and what to spend depends on how far the hobby has taken you. The Amazon links work like the ones above: a search for the type of item, and a possible commission for us at no extra cost to you.
Metal detectors and a pinpointer compared
An entry-level detector and the pinpointer from the kit above, plus the step up, all from Nokta, whose pages list full specifications.
| Model | Type | Specs | Who it suits | Links |
|---|---|---|---|---|
| Nokta Simplex Lite | Entry-level detector | 15 kHz; Field, Park, Beach and All Metal modes; target ID 01-99; 30 sensitivity levels; automatic or manual ground balance; submersible to 5 m (16 ft); Nokta gives 1.2 kg (2.6 lb) for the Simplex series | A first detector for parks, fields and the beach | Find it on AmazonMaker's page |
| Nokta The Legend 2 | Multi-frequency detector | Simultaneous multi-frequency; 99 target IDs; 7 tone options; Bluetooth for wireless headphones; submersible to 5 m (16 ft) | The step up, for mixed ground and water | Find it on AmazonMaker's page |
| Nokta AccuPOINT | Pinpointer | Waterproof to 3 m (10 ft); color screen; audio, vibration or both; LED flashlight; lost alarm after 5 minutes idle; Bluetooth audio | Finding the target in the hole, as the kit above suggests | Find it on AmazonMaker's page |
How we put this together. Three products compared on what Nokta states on its own product pages; Minelab's and Garrett's pages could not be read. We have not swung them side by side. Before you dig, check the rules for the land; this guide notes what applies to private land, parks and national parks. Checked on 26 October 2026. There are no prices in this table: the Amazon link searches for the exact model, and we may earn a commission if you buy through it.
From permission to a first clean dig, step by step
Metal detecting is mostly about where you are allowed to search and how neatly you dig. This guide goes from finding legal ground and choosing a detector to reading signals and leaving no trace, with the choices at each step. The legal points are US federal rules; parks, states and landowners add their own.
Warning: Before you start Possessing or using a metal detector in national parks is prohibited (36 CFR 2.1(a)(7)). Under the Archaeological Resources Protection Act, items at least 100 years old of archaeological interest on federal and tribal land may not be dug or removed without a permit. Always get the landowner's permission on private land and follow each park's own rules. Fill every hole, and never dig near marked utility lines.
Start in your own yard or on private land with the owner's permission. For a public park or beach, check its rules first - many cities and states require a permit or ban digging.
Follow the manual for ground balance and pick the factory coin or park mode. Learn the tones by burying a coin, a pull tab and a nail in your own yard and sweeping over them.
Keep the coil level and an inch or two above the ground, overlap each sweep, and walk slowly in lines.
On a repeatable signal, cut a horseshoe-shaped plug, fold it back, and find the target with the pinpointer before digging deeper.
Put the soil back, replace the plug, press it down and carry out every piece of trash you found.
A clean dig
The cut from above, and the open hole in section.
- A Hinge Left uncut The plug folds back on it in one piece. Step 6 →
- B Horseshoe cut Round the centre With a serrated digging tool. Step 6 →
- C Pinpointer In the hole Find the target before digging deeper. Step 6 →
- D Plug Folded back whole Goes back on top, pressed flat. Step 7 →
- E Target Repeatable signal Sweep over it from two directions. Step 5 →
Steps 1-3Before you go
- Step 1 of 9 · Before you go
Find where you may detect
Warning: NOTICE Under the Archaeological Resources Protection Act, objects of archaeological interest at least 100 years old on federal or tribal land may not be dug or removed without a permit.
Start in your own yard or on private land with the owner's permission. Using a metal detector in national parks is prohibited (36 CFR 2.1), and many city and state parks and beaches need a permit or ban digging - read each one's rules first.
Goes wrong: Not checking first. It is the commonest way detectorists get into trouble - and get places closed to everyone.
- Step 2 of 9 · Before you go
Choose a detector
Hobby detectors work in one of two ways. Wikipedia: very-low-frequency (VLF) machines can tell metals apart by how each responds, but are affected by mineralised soil; pulse-induction (PI) machines are mostly unaffected by mineralisation - finding jewellery even in black sand - but tell metals apart far less well.
Most people: vLF with a waterproof coil (parks, yards, dry sand).
Start here VLF with a waterproof coilBest forParks, yards, dry sand
Discrimination helps skip trash; the usual entry-level machine.
Pulse inductionBest forMineralised ground, gold
Ignores mineralisation, digs more trash.
Fully submersibleBest forWading and diving
Waterproof right up to the control box, used with a long sand scoop.
- Step 3 of 9 · Before you go
Learn the tones at home
Follow the manual for ground balance - the setting that cancels the background signal of mineralised soil - and start in the factory coin or park mode. Then bury a coin, a pull tab and a nail in your own yard and sweep over them until you know each sound.
Steps 4-7In the field
- Step 4 of 9 · In the field
Sweep low and slow
Hold the coil flat, an inch or two off the ground, all the way through each swing - not only in the middle. Let each sweep overlap the last and move forward slowly, in straight lines, so no strip of ground is skipped.
Goes wrong: Sweeping fast and high. A coil swung quickly a foot above the ground misses most targets.
- Step 5 of 9 · In the field
Decide what to dig
Discrimination works because metals respond differently, but Wikipedia notes some valuable metals answer like trash, so filtering hard can reject good finds - and it lowers sensitivity.
Most people: dig every repeatable signal (learning the machine).
Start here Dig every repeatable signalBest forLearning the machine
Slower, but you learn what each tone really is.
Discriminate out ironBest forTrashy ground
Faster, at the cost of missing some targets near trash.
- Step 6 of 9 · In the field
Cut a neat plug
On a repeatable signal, cut a horseshoe-shaped plug of turf with a serrated digging tool, fold it back on its hinge, and find the target with a pinpointer before digging deeper, so the hole stays small.
Goes wrong: Digging near marked utility lines. Move on.
- Step 7 of 9 · In the field
Leave no trace
Put the soil back, replace the plug, press it down and carry out every piece of trash you dug up - one pocket for finds, one for trash.
Goes wrong: Leaving holes. Unfilled holes are how detecting gets banned from a park.
Steps 8-9Afterwards
- Step 8 of 9 · Afterwards
Clean finds gently
Rinse and dry; research before cleaning anything old.
Goes wrong: Scrubbing finds. Abrasive cleaning ruins old coins and relics.
- Step 9 of 9 · Afterwards
Choose a direction
After a season of parks and yards, detectorists tend to specialise.
Most people: find-and-return (helping others).
Beach detectingBest forLost jewellery
Dry sand and wet sand at the water's edge; salt water needs a machine that copes with it.
Relic huntingBest forHistory, with permission
Old farms and homesteads; the law on historic finds matters most here.
Start here Find-and-returnBest forHelping others
Searching for someone's lost ring or keys, often as a favour.
In shortIf it goes wrong
- Not checking first.
- Step 1 · Find where you may detect
- Sweeping fast and high.
- Step 4 · Sweep low and slow
- Digging near marked utility lines.
- Step 6 · Cut a neat plug
- Leaving holes.
- Step 7 · Leave no trace
- Scrubbing finds.
- Step 8 · Clean finds gently
How you get better
- Weeks 1 to 2Learn the machine at home
Bury a coin, a pull tab, a nail and foil in your own yard and learn how each one sounds at different depths.
- Weeks 3 to 6Permitted parks and beaches
Short sessions where detecting is clearly allowed, practicing neat plugs and leaving no trace.
- Months 2 to 3Permission on private land
Asking owners of older yards and farms, keeping a note of who agreed to what, and sharing interesting finds with them.
- Months 3 to 6Research and better sites
Old maps, local history and aerial photos to find where people gathered, and a club for advice and organized hunts.
- After thatSpecialties
Relics, beaches, water hunting or gold, each with detectors and techniques of its own.
- Checking where detecting is allowed
- Asking landowners for permission
- Ground balancing
- Sweeping low and level
- Reading target tones
- Pinpointing
- Cutting and replacing a plug
- Recovering small finds
- Cleaning finds safely
- Researching old maps and records
- Recording where things were found
- Knowing the law on historic finds
Small things that help
- Get permission in writing on private land, and agree beforehand how finds will be shared.
- Check every public park's or beach's rules before going; ask the parks department if they are not posted.
- Dig every repeatable signal while learning - the tones only make sense once you have seen what made them.
- Cut a horseshoe-shaped plug and fold it back so the turf stays attached and heals quickly.
- Do not clean old coins aggressively; scrubbing can destroy their value and their detail.
- Carry out the trash you dig up; it makes the next hunt there easier and keeps landowners happy.
Beginner mistakes
- 01Detecting where it is not allowedNational parks ban it, and many other public lands restrict it. Not checking first is the commonest way to get into trouble.
- 02Sweeping too fast and too highA coil swung quickly a foot above the ground misses most targets. Low, level and slow.
- 03Ignoring iron and trash signals completelyDiscriminating out everything can hide good targets near trash. Learn what the machine tells you before filtering hard.
- 04Leaving holesUnfilled holes get detecting banned from places. Refill and replace every plug.
- 05Scrubbing findsAbrasive cleaning ruins old coins and relics. Rinse, dry and research first.
Where you may detect (United States)
Rules differ by state, county and city; this is the federal baseline and the common pattern. Check the rules of the exact place before you go.
| Land | Rule |
|---|---|
| Your own land | Yes |
| Someone else's private land | Only with the owner's permission |
| National parks | No: possessing or using a metal detector is prohibited (36 CFR 2.1) |
| Other federal and tribal land | Archaeological items at least 100 years old are protected by federal law (ARPA); agency rules vary - ask the local office |
| State and city parks and beaches | Set by each state or city; many need a permit or ban digging |
Why people quit
- 01Too much trashParks are full of foil, tabs and nails. Learning the tones on test targets and using the pinpointer keep the hunt from becoming all digging.
- 02No permissionRunning out of legal places ends more detecting than boredom does. Asking owners of old farms and yards opens the best ground.
- 03Expecting treasureMost outings bring modern coins and junk. Keeping a log of finds and places helps notice the progress that is there.
Words you will meet
- Ground balance
- Adjusting the detector to ignore the natural minerals in the soil.
- Discrimination
- Telling the detector to ignore certain kinds of metal, such as iron.
- Target ID
- A number or tone the detector gives to suggest what kind of metal a target is.
- Pinpointer
- A small handheld probe that finds the exact spot of a target in the hole.
- Plug
- The flap of turf cut over a target and put back afterwards.
- VLF
- Very low frequency - the common detector type for coins and relics.
- Pulse induction (PI)
- A detector type that ignores mineralized ground and salt water well; used for beaches and gold.
- Multi-frequency
- Detectors that use several frequencies at once, coping better with varied ground and salt.
- Hot rock
- A mineralized stone that sets off a signal like metal.
- ARPA
- The US Archaeological Resources Protection Act, protecting archaeological items at least 100 years old on federal and tribal land.
Questions people ask
Where can I legally metal detect?
Your own land, and private land with the owner's permission, are the safest places. National parks ban detectors; other public land, state parks and city parks set their own rules, so check each one.
Can I keep what I find?
On your own land, generally yes; on someone else's, agree it with the owner. Historic and archaeological items on federal and tribal land are protected by law and may not be dug or kept.
What does a beginner find?
Mostly modern coins, pull tabs, foil and nails, with the occasional ring, token or older coin. The trash is part of learning the tones.
How deep do detectors find things?
Coin-sized targets are usually found within several inches of the surface with entry machines; depth depends on the target, the soil and the coil.
Do I need an expensive detector?
No. Entry-level detectors from the main makers find coins and jewelry well; experience matters more than price for the first season.
Where to go next
- 01GeocachingSearching outdoors for hidden things, with a map instead of a coil. Free to start
- 02Rock collectingAnother collecting hobby where knowing whose land it is comes before picking anything up. $83 to start
How it compares
| Metal detecting | Geocaching | Rock collecting | Shed hunting | |
|---|---|---|---|---|
| Start cost | $398 | Free | $83 | Free |
| Each month | $5 | $3 | Free | Free |
| Space | A park or a beach | The whole town | A shelf with labels | Fields and woods |
| Noise | Low | Quiet | Quiet | Quiet |
| First result | 1 afternoon | The first find | The first find | A few walks |
| Mess | Holes you refill | None | Dust and mud | Muddy boots |
Where to learn more
- 01Garrett Metal Detectors - hobby guidesA US detector maker with free guides on technique, ground balance and detecting etiquette.
- 02Minelab - learning centerA detector maker's articles and videos for coin, beach and gold detecting.
Sources: Wikipedia, Metal detector (history) · 36 CFR 2.1(a)(7), metal detectors in national parks (Cornell LII) · 16 U.S.C. 470bb, Archaeological Resources Protection Act definitions - 100 years (Cornell LII)
Researched and written by the Fjords Team.