Shared layer · In 16 states

Stream Sediment Geochemistry

Explorer

Stream sediment sample locations. Elevated gold values in stream sediments indicate upstream gold sources. Follow the drainage up to find the origin.

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Stream Sediment Geochemistry in the Detector Maps app, Arizona

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

About this layer

Stream sediment samples test material collected from creek or river beds. A higher reading can be a clue to mineral-bearing ground somewhere upstream. Compare nearby samples and the upstream drainage; the sample point is not necessarily the source.

What it is for

Check the sample type, element and units in the legend before comparing readings. Look for patterns across nearby samples.

Limits

Sampling methods, depth and laboratory detection limits can differ. A high reading alone does not show a detectable nugget.

Plans

Where it works in USA gold.

Alabama Alaska Arizona California Colorado Georgia Idaho Montana Nevada New Mexico North Carolina Oregon South Carolina Utah Virginia Washington

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 Alabama, Arizona, California, Colorado, Georgia, Idaho, Montana, Nevada and 7 more

Data provided by the U.S. Geological Survey (USGS), Bureau of Land Management (BLM), U.S. Forest Service (USFS), and ReportAll USA (Licensed), licensed under USGS Public Domain and other applicable licenses USGS Public Domain

For Alaska

Data provided by the U.S. Geological Survey (USGS), the Alaska Division of Geological & Geophysical Surveys (DGGS), the Alaska Department of Natural Resources (DNR), Bureau of Land Management (BLM), U.S. Forest Service (USFS), and ReportAll USA (Licensed), licensed under USGS Public Domain and other applicable licenses USGS Public Domain

Legend

How it is drawn.

Streams

Concentration
Low
Medium
High

Plans

What the pills mean.

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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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