Shared layer · In 16 states

Historic USGS Topo Maps

Explorer

Historical maps show how an area was recorded in an earlier period.

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Free to download on iPhone and Android.

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Scan with your phone camera to get the app
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On your phone: App Store · Google Play

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

4.7 / 5 from 2,400+ ratings on the App Store and Google Play · 10,000+ prospectors and detectorists
Historic USGS Topo Maps in the Detector Maps app, Arizona© Mapbox, © Maxar

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

About this layer

Historical maps show how an area was recorded in an earlier period. Compare old roads, buildings, boundaries and workings with the modern basemap. Scans can be misaligned, and features may have moved or disappeared.

What it is for

Compare the old map with the modern basemap using opacity. Check the selected map or era before interpreting a feature.

Limits

Old maps can be stretched, incomplete or offset from modern coordinates. Treat locations as clues rather than exact positions.

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.

Historic USGS Topo Maps
Scanned historical USGS topo maps. Use the era slider to change the decade shown.
  • Topographic map

Filters in the app

Era filter

Draws from zoom 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. $59.99 a year or $7.99 a month.

Pro

Dynamic LiDAR and Terrain+ 3D models. Property boundaries with landowner names. Claim alerts. $99.99 a year or $11.99 a month.

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

Prices are in US dollars.

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

Get Detector Maps

Plan the next trip tonight.

Free to download on iPhone and Android.

On iPhone? Get it on the App StoreOn 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 trialOpen 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

The Detector Maps support inbox is staffed by Matt and Tom, the two brothers who built it. Contact us