Gold Prospector App

Read the land. Strike gold.

Gold Prospector is the all-in-one app for recreational gold prospectors and metal detectorists. Built by a lifelong prospector, it brings together AI, GIS mapping, 1-meter LiDAR, and historic topo maps.

— FEATURES —

OFFLINE MAPS
Download areas before you go and use them with no service at all, including airplane mode. LiDAR, historic topo, roads and trails, claims, public lands, property lines, and 3D terrain all come with it. Log finds and record tracks with no signal.

1-METER LIDAR HILLSHADE
USGS 3DEP shading that reveals what the ground remembers. Placer cuts, hydraulic pits, tailings, benches, and old water races show up in the terrain itself, even under a century of brush. Pick Ultra 1m, Standard, or Multi on the map. Ultra 1m is available for California, more states coming.

ROADS & TRAILS
Every road and trail from USGS, the Forest Service, and BLM — with surface, vehicle class, and seasonal closures. Tap any road for who manages it and which vehicles are allowed. Decommissioned roads are marked. Nationwide, works offline.

GOLD TRAPS
Creek bends and steep gullies near known gold occurrences. The places moving water slows down and drops what it was carrying.

STREAMS, RIVERS & LAKES
Every waterway in the lower 48, named where it has one. Line weight follows actual flow, and the map tells you which run year-round and which only after rain. Tap any stream for its name, size, and average flow.

HISTORIC TOPO MAPS
Scanned USGS topos back to 1879, overlaid on the modern world with an opacity slider. Three eras spanning 1879 to 1940.

HISTORIC MAP BUILDER
Over 250,000 town and city maps from the late 1800s through 1930, yours to place on the modern map. See the streets and buildings lost to time.

CLAIM WARNINGS
The app watches your position and tells you when you step onto a mining claim or near one, whether the layer is on or not.

COIN & RELIC ID
Photograph a coin, button, buckle, or nail for an instant ID — type, mint years, material, and history.

AI TERRAIN ANALYSIS
Snap a photo of any creek or hillside and let the AI score its gold potential.

GOLDBOT, YOUR AI PROSPECTING GUIDE
Ask anything. Built for prospectors, by a prospector.

DATA LAYERS, 2D AND 3D
Every layer has its own opacity control and an info button.

Hillshade / LiDAR — Ultra 1m, Standard, Multi
Historic Topo, 1879 to 1940
Historic Maps, 250,000+ sheets
Historic Sites — battlefields, mills, camps, towns
Streams & Rivers, with flow and seasonality
Lakes & Ponds
Gold Traps
Gold Probability
Pay Streak Zones
Historic Mines, 83,000+ nationwide
Active Mining Claims - Updated daily.
Closed Mining Claims
Public Lands, with unit names and access
Designations & Wilderness
State & Local Lands
Property Lines, with owner names where available.
Geochemistry
Rock Types
Mineral Deposits
Magnetic Anomaly
Modern USGS Topo
Roads & Trails
My Pins and Find Log

Basemaps: Satellite, Outdoors, Topo, and Dark.

The right stack of layers reveals ground most prospectors walk right past.

TRACK EVERY TRIP & FIND
GPS trail tracking and a detailed find log. Record a track and see it colored by pace — where you were sweeping, walking, or driving. Distance, duration, elevation gain, and finds logged along the way. Share a track like you would a pin. Record finds with photos, weight, location, and notes.

TIPS & GUIDES
Guides covering geology, equipment, technique, and history.

A COMMUNITY THAT GETS IT
Share finds, follow other prospectors, ask questions. Built for our hobby, without the noise of social media.

— FREE & PRO —

Free forever: the map and all basemaps, 3D terrain, GPS, your pins and find log, trail tracking, tips and guides, and the community feed.

Pro unlocks: every data layer above, plus offline map downloads, the Historic Map Builder, AI terrain analysis, Coin & Relic ID, and GoldBot.

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