How to Track Your Metal Detecting Sessions with GPS

Ever come back to a field and think “did I already walk this row?” GPS tracking solves that. It records your exact path in real time, so you know precisely what ground you've covered — and more importantly, what you missed.

What GPS Tracking Does for Detecting

• Shows your walked path on a satellite map as you detect
• Records distance, time, speed, and altitude for every session
• Lets you overlay past tracks on the same map so you can see gaps
• Marks find locations with GPS coordinates so you can return to productive spots
• Exports your path as GPX for Google Earth or KML for other mapping software

Why Track Overlay Changes Everything

A single session track is useful. But the real power comes from overlaying multiple sessions on the same site. When you see 5 or 6 colored paths on a satellite view, the gaps between them are immediately obvious — those are the patches you haven't walked yet.

This is especially valuable on large permission sites where you visit multiple times over weeks or months. Without track overlay, you're guessing. With it, you're systematic.

Tips for Better GPS Sessions

• Walk in straight-ish lines — zigzag patterns make it hard to see gaps on playback
• Use satellite view — it's easier to orient yourself with real terrain features
• Mark your finds — pin drops with GPS coordinates let you see hotspot clusters over time
• Check the heatmap — a density overlay shows where you've spent the most time
• Export and archive — save your best session GPX files for future reference

What About Battery Life?

GPS tracking does use battery — expect around 10-15% per hour on most modern phones, similar to navigation apps. For long sessions, bring a power bank. Some phones have battery saver GPS modes that reduce accuracy slightly but extend runtime.