The ClaimsThe GroundTime MachineModern MinerVisionJoin
Marshall Mining Labs

MODERN
MINER

Forty acres on Beaver Creek. A hundred and sixty years of Idaho gold history. One AI-powered platform built to find what's still down there.

SCROLL
The Claims

Big Beaver Creek & Little Beaver Creek

Two placer claims, twenty acres each, tucked into Boise County eighteen miles past Idaho City — the town that exploded from a mudhole to twelve thousand people in eight months during the 1862 gold rush, then quietly returned to the mountain.

We're not just working the ground. We're building the intelligence layer that should have existed the whole time — mapping every bend, every bedrock crack, every place water has ever concentrated color.

43.9659°N, 115.6044°W — Big Beaver Creek · IDC-BB-4471 43.9668°N, 115.6006°W — Little Beaver Creek · IDC-LB-4472
160+
Years since the Boise Basin gold rush began
40
Acres under active development this season
2026
Year one of the proof of concept, on the ground
The Ground

Walk the claims — virtually

Big Beaver and Little Beaver Creek, Boise County, Idaho. Forty acres of active placer ground, eighteen miles past Idaho City. Zoom in, tilt into 3D, explore the terrain that's held gold since the 1862 rush.

Big Beaver Creek · IDC-BB-4471 · 20 acres
Little Beaver Creek · IDC-LB-4472 · 20 acres
// Beaver Creek Time Machine

600 Years on
Forty Acres

How the land changed — the creek, the people, and the gold — from ancient drainage to active claim.

PRESENT DAY
2026

Two Active Claims

BLM MINERAL RIGHTS ACTIVE PLACER 40 ACRES

Big Beaver Creek (IDC-BB-4471) and Little Beaver Creek (IDC-LB-4472). Two drainages, one mountain, two decades of accumulated placer deposits waiting for a systematic season.

TERRAIN NOTE
Channels largely stabilized since late-20th century reclamation. Creek beds show remnant hydraulic mining debris from the 1880s–1900s. Bedrock channels beneath current alluvial fill remain unmapped.
GOLD NOTE
Active placer gold in both drainages, concentrated in bedrock crevices, behind boulders, and in natural trap pockets. Deeper buried channels (ancient paleobeds) may hold significantly higher concentrations.
IDC-BB-4471 IDC-LB-4472 BIG BEAVER LITTLE BEAVER N ↑ ~0.5 mi BLM CLAIM BOUNDS ACTIVE CHANNEL
GOLD RUSH ERA
1890

The Hydraulic Era

BOISE BASIN RUSH HYDRAULIC MINING CHANNEL DISTURBANCE

Twenty-eight years after the 1862 Boise Basin gold rush — the largest in Pacific Northwest history — hydraulic operations had dramatically altered Beaver Creek's natural channels.

TERRAIN NOTE
Hydraulic monitors (giants) used high-pressure water to blast hillsides, flushing gold-bearing gravels through sluice boxes. Creek channels were widened significantly, valley floors filled with tailings. The Boise Basin produced an estimated $250M in gold (1860s dollars).
PEOPLE
Chinese miners dominated placer operations by the 1870s–80s, reworking tailings abandoned by earlier white miners. Idaho City had 6,000+ residents in 1863 — larger than Portland at the time.
GOLD NOTE
Easily accessible surface gold largely removed 1862–1880. Deeper bedrock channels and buried paleobeds untouched. The 1890 federal mining survey noted Beaver Creek as "worked but not exhausted."
HYDRAULIC MONITOR IDAHO CITY → BIG BEAVER LITTLE BEAVER N ↑ DISTURBED CHANNEL (HYDRAULIC) MODERN CHANNEL (REFERENCE)
PRE-CONTACT ERA
1790

Shoshone Territory

NORTHERN SHOSHONE NATURAL DRAINAGE PRISTINE CHANNELS

Seventy years before the gold rush, the Boise Basin was Northern Shoshone seasonal territory. The creeks ran in their natural state — wider, more sinuous, and significantly more productive as fish and game habitat.

TERRAIN NOTE
Natural creek channels, free of mining disturbance. Wider floodplain active — spring snowmelt floods reached further from the channel. Beaver populations (for whom the creek is named) maintained natural dams, creating wetland complexes that acted as gold-trapping sediment basins.
PEOPLE
The Northern Shoshone (Newe) used the Boise Basin for summer and fall hunting — elk, mule deer, bighorn sheep. Seasonal camps near major water sources. The Boise Basin was transitional territory between Snake River lowlands (winter) and mountain hunting grounds (summer).
GOLD NOTE
Gold known to exist — Shoshone oral traditions reference yellow metal in the mountain streams — but not systematically mined. Centuries of undisturbed spring floods had redistributed placer gold into rich natural traps. This is the deposit that would cause the 1862 rush.
BEAVER DAM SEASONAL CAMP (NORTHERN SHOSHONE) BIG BEAVER LITTLE BEAVER N ↑ NATURAL CHANNEL (PRE-MINING) MODERN CHANNEL (REFERENCE)
LITTLE ICE AGE
1650

Peak Snowpack Era

LITTLE ICE AGE ACTIVE REDISTRIBUTION SHOSHONEAN PEOPLES

The Little Ice Age (roughly 1300–1850) brought significantly deeper snowpacks to the Boise Mountains. Spring flooding was more dramatic, regularly inundating wider floodplains and actively redistributing placer gold.

TERRAIN NOTE
Ice age cooling meant 30–50% deeper snowpack in the Boise Mountains (paleoclimate estimates). Spring flood events were larger, faster, and more energetic. The creek would have cut more aggressively into the valley floor, redistributing gold-bearing gravels into locations that miners would later find exceptionally productive.
PEOPLE
Shoshonean peoples (ancestors of the Northern Shoshone-Bannock) maintained continuous presence in the region. Cooler summers meant different game migration patterns — elk and deer ranges shifted downslope. Mountain basin access may have been limited to shorter seasons.
GOLD NOTE
The high-energy flood events of this era were key gold-concentration events. Placer gold that had eroded from hardrock sources over thousands of years was sorted and concentrated in natural hydraulic trap zones — the same pockets later miners would find first.
DEEP SNOWPACK ZONE GOLD TRAP BIG BEAVER LITTLE BEAVER N ↑ CHANNEL (LITTLE ICE AGE) GOLD CONCENTRATION ZONE
ANCESTRAL ERA
1400

Ancestral Drainage

MEDIEVAL WARM PERIOD END SHOSHONEAN ANCESTORS ANCIENT CHANNEL

At the close of the Medieval Warm Period (~1250–1350 CE), the Pacific Northwest experienced shifting precipitation patterns. The Beaver Creek drainage looked significantly different — older, slower, more braided.

TERRAIN NOTE
The end of the Medieval Warm Period brought cooler, wetter conditions beginning to reshape the drainage. The creek channel in 1400 likely ran further east before the onset of Little Ice Age floods shifted it toward its historical position. Ancient meander scars — visible in modern aerial photography as faint arcs of slightly different vegetation — show where the creek once ran.
PEOPLE
Archaeological evidence suggests continuous human occupation of the greater Boise Basin for 9,000+ years (Birch Creek sites, Weston County evidence). The ancestors of the Shoshone-Bannock were well established throughout the Snake River watershed by 1400 CE. Idaho SHPO records document multiple rock art and lithic scatter sites throughout the Boise Basin drainage.
GOLD NOTE
The original source gold — from Cretaceous quartz veins in the Idaho Batholith — had been eroding into the Beaver Creek drainage for roughly 65 million years. By 1400, the alluvial gold placer system was mature, well-developed, and waiting for the hydraulic forces of the coming Little Ice Age to concentrate it into the deposits that would eventually trigger the 1862 rush.
ANCIENT MEANDER SCAR (ESTIMATED) CRETACEOUS QUARTZ VEINS (GOLD SOURCE) ARCHAEOLOGICAL EVIDENCE ZONE 65 MILLION YEARS OF EROSION → THIS CREEK BIG BEAVER LITTLE BEAVER N ↑ ANCIENT CHANNEL (BRAIDED) ANCIENT MEANDER SCAR (ESTIMATED)
PRESENT / 2026
← DRAG OR USE ARROWS TO TRAVEL THROUGH TIME →
Sources & methodology: Creek channel positions for present and 1890 are interpretive approximations based on USGS topographic surveys and historical mining records from the Boise Basin district. Pre-mining era channels (1790, 1650, 1400) are informed estimates based on paleoclimate models, regional hydrology, and archaeological literature for the Idaho Batholith drainage system. Gold distribution notes reference published placer mining geology for the Boise Basin. Cultural history draws from Northern Shoshone-Bannock tribal historical records and Idaho State Historical Society documentation. Ancient meander scars and paleobed positions to be refined with ground-truthed LIDAR survey data.

Historical map sources: USGS National Topographic Map Collection — Idaho City Quadrangle (1893 survey, 1902 edition) · Boise Basin Mining District Survey, General Land Office (1867) · Idaho State Historical Society, Boise Basin Collection
ELIAS COBB
OLD TIMER · AI FIELD PARTNER
EST. ~1426
AI PROSPECTING PARTNER · MOBILE EXCLUSIVE

The Gold Savant of the
Last Six Centuries.

 

— ELIAS COBB · OLD TIMER · EST. ~1426

Old Timer is an AI prospecting partner trained on 600 years of Boise Basin knowledge. He was here before Idaho had a name. He knows every bedrock contact, every pay streak, every creek bend — and he has four gold nugget teeth from Little Beaver Creek to prove it. On-device. Offline-first. Built for the field.

⛏️

Pay Streak ID

Photo your ground. Old Timer reads it like a map he drew himself in 1882.

📷

Gold Photo Analysis

Nugget type, weight estimate, probable source — specific, immediate, six centuries of pattern recognition.

🏔️

600-Year Memory

Ask him what this canyon looked like in 1650. He was there. He remembers every flood, every shift, every buried pay streak.

📡

Offline First

Full intelligence at zero bars. Runs on-device. Sync when you hit cell coverage back in Idaho City.

Download Modern Miner — Talk to Old Timer →
The Platform

Built for the creek, not the boardroom

Modern Miner is the AI prospecting companion living in your pocket — live yield tracking, claim management, AI-guided field intelligence, and a map that actually knows your ground.

MODERN MINER
⚖️

Live Yield Tracking

Real-time session weight, value, and rate as you work.

⛏️

Old Timer AI

An AI prospecting partner with 600 years of Boise Basin knowledge. Born 1426. Four gold nugget teeth.

🗺️

Claim Mapping

Drop pins, log finds, build a living map of your ground.

📋

Claim Management

BLM filings, fees, and deadlines — handled, not missed.

What's Next

Year one is the proof. What comes after is the point.

01

This Season

Field-testing Modern Miner across both claims — measuring everything, refining the platform against real ground.

02

The Network

Opening the platform to fellow prospectors and small mining operations who've been doing this their whole lives.

03

The Digital Twin

A fully mapped, AR-capable claim — topography, ancient riverbeds, water systems.

04

Next Season

Field-testing the fully mapped, AR-capable claim — topography, ancient riverbeds, and water systems brought to life in the field.

05

Grow the Network

Expanding the app and platform technologies, tools and commercialization — showcasing new capabilities to the broader mining world.

06

Launch in the App

Year one: awareness among real miners and IGPA members. Year two: campaigns to casual prospectors and gold enthusiasts. Year three: full launch on Apple and Android.

Follow the dig.

Season updates, gold finds, and early access to Modern Miner — straight from the creek.

OT
OT
OLD TIMER
Elias Cobb · Est. 1851
✕
...well, look who showed up. Name's Elias. You here for the app, the claims, or just seeing if I bite?
What is Modern Miner?
Tell me about the claims
How do I get early access?