Shared layer · In 3 states

Total Magnetic Intensity (1VD)

Explorer

First vertical derivative showing shallow magnetic edges and contacts.

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Total Magnetic Intensity (1VD) in the Detector Maps app, New South Wales

Satellite imagery © Mapbox, © Maxar. Layer data from the sources named on each card.

About this layer

This magnetic view emphasises changes and edges in the survey data. The abbreviation 1VD means first vertical derivative. Compare its sharper lines with the broader RTP image and geology, rather than treating every bright edge as a gold target.

What it is for

Compare broad patterns and boundaries with mapped geology. Check which magnetic processing option is selected.

Limits

Magnetic highs and lows do not directly measure gold. Survey processing can emphasise different parts of the same signal.

Plans

Where it works in Australia.

New South Wales Northern Territory Victoria

Explorer

Pictures

Drawn in each state.

Satellite imagery © Mapbox, © Maxar. Layer data from the sources named on each card.

Source

Where the data comes from.

For New South Wales

Data provided by The State of New South Wales (Geological Survey of NSW, GSNSW, Dept of Planning and Environment, Forestry Corporation of NSW, Spatial Services NSW, Department of Regional NSW), licensed under CC BY 4.0

For Northern Territory

Data provided by Northern Territory of Australia (Northern Territory Geological Survey) 2025, licensed under CC BY 4.0

For Victoria

Data provided by State of Victoria (Geological Survey of Victoria 2024, Department of Energy Environment and Climate Action 2024, Department of Jobs Skills Industry and Regions 2024, Department of Transport and Planning - 1m DEM LiDAR Dataset), licensed under CC BY 4.0

Plans

What the pills mean.

Every layer shows the plan that opens it. The free plan never runs out. Prices are shown once, here.

Free

Open on every plan, forever. Includes gold records.

Explorer

Opens every base layer, and offline maps for the areas you choose. A$99 a year or A$9.99 a month.

Pro

Tenement alerts for a drawn area or a whole state. Report search across decades of exploration reports. A$249 a year or A$34.99 a month.

Add-on

A layer sold on its own: the Victorian LiDAR add-on, A$39.99 a year.

7-day free trial on yearly plans · Nothing charged until it ends · Cancel anytime.

Get Detector Maps

Plan the next trip tonight.

Free to download on iPhone and Android.

Download on theApp Store Get it onGoogle Play

On iPhone? Get it on the App Store On Android? Get it on Google Play

Free to download on iPhone and Android.

7-day free trial on yearly plans · Nothing charged until it ends · Cancel anytime.

Scan with your phone camera to get the app

Start free trial Open the web map

On your phone: App Store · Google Play

7-day free trial on yearly plans · Nothing charged until it ends · Cancel anytime.

Or open the web map

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