Lost California Treasure
BURIED CACHE Protected / Restricted

Dr. John Marsh Pioneer Cache

Dr. John Marsh, one of the first American doctors in California, accumulated a massive fortune in gold coins and bullion during the Gold Rush. Distrustful of banks, he buried his wealth in various spots around his massive stone ranch house near the base of Mt. Diablo. In 1856.

Dr. John Marsh Pioneer Cache
Historical documentation reference for Dr. John Marsh Pioneer Cache in Mt. Diablo Foothills, Contra Costa County.

AI Summary & Quick Facts

This structured summary is crawler-optimized for search engine AI overview queries and quick suggestion indexing.

  • Target Name: Dr. John Marsh Pioneer Cache
  • Registry Category: buried cache
  • Geographic Location: Mt. Diablo Foothills, Contra Costa County (Coordinates: 37.89240, -121.72140)
  • Land Status: State Park (Restricted) (Classified as Protected / Restricted)
  • Primary Historic Source: Contra Costa County Historical Society
  • Search & Usefulness Rating: Score 37/100 (Field Readiness: Archive / View Only)
  • Summary Overview: Dr. John Marsh, one of the first American doctors in California, accumulated a massive fortune in gold coins and bullion during the Gold Rush. Distrustful of banks, he buried his wealth in various.

Historical Overview

Dr. John Marsh, one of the first American doctors in California, accumulated a massive fortune in gold coins and bullion during the Gold Rush. Distrustful of banks, he buried his wealth in various spots around his massive stone ranch house near the base of Mt. Diablo. In 1856, Marsh was murdered by disgruntled vaqueros. While some gold was recovered from his home, the bulk of his fortune was never accounted for by his heirs, and is believed to still be buried on the former rancho land.

Field Search & Recovery Tips

The Marsh Creek State Historic Park is strictly off-limits to detecting and digging. However, public properties and historical roads in the surrounding Contra Costa foothills can be researched for coin shoots.

Field Action Checklist

1
Use the source link, public overlooks, museum records, or agency pages; do not disturb the ground or wreck site.
2
Record photos, bearings, and public interpretation notes instead of collecting objects.
3
Contact the managing agency before any research that goes beyond viewing or documentation.

Related buried caches

  • Joaquín Murieta's Bodie Hills Stash buried cache · Bodie Hills, Mono County · Medium probability

    Joaquín Murieta, the famous 'Robin Hood of El Dorado,' was rumored to have multiple caches of stolen gold hidden throughout California. One of his largest stashes, valued at $200,000 in gold coins and dust, is said to.

  • Peter Lassen Buried Treasure buried cache · Deer Creek near Vina, Tehama County · Medium probability

    Peter Lassen, the famous Danish pioneer who gave his name to Lassen Volcanic National Park, owned a large rancho along Deer Creek. Before his mysterious murder in 1859, Lassen supposedly buried a cache of over $50,000.

  • Rattlesnake Dick's Trinity Mountain Loot buried cache · Trinity Mountain, Shasta-Trinity National Forest · Medium probability

    In 1856, the outlaw 'Rattlesnake Dick' Barter and his gang hijacked a mule train carrying gold bullion from the Yreka mines down to Sacramento. During their escape over the rugged slopes of Trinity Mountain, the gang.

  • The Deloma Cave Indian Cache buried cache · New River Wilderness, Trinity County · Low probability

    During the California Indian Wars of the 1850s, local tribes reportedly raided several rich mining camps along the Trinity and Klamath Rivers. To protect their loot from soldiers and miners, they stockpiled gold dust.

  • Butler's Buried Cache buried cache · Amador County, Mokelumne River channel roughly two miles northeast of Lancha Plana (submerged under Camanche Reservoir). · Low probability

    During the Gold Rush, a prospector named Butler operated an incredibly rich placer claim on a bend of the Mokelumne River that yielded up to fifty thousand dollars daily. Distrustful of banks and under pressure from.

  • Clear Creek Mormon Coin Cache buried cache · Shasta County, southwest of Redding near the historic Horsetown Clear Creek Diggings along Clear Creek Road. · Medium probability

    In the 1850s, a Mormon wagon train was journeying through the Redding valley toward the settlement of Horsetown when they attempted to cross a swollen, flash-flooded Clear Creek. One of the wagons, driven by an.

Research Dossier
37
Usefulness Rating Speculative Lead
Land Status Designation Protected / Restricted

State Park (Restricted)

Field Readiness Mode Archive / View Only
Research Coordinates
37.89240, -121.72140

Recommended Outfitting

Historical Map App Note Pad Metal Detector (Private/Permitted Land Only)
Reference Work Citation

Contra Costa County Historical Society

Open original reference source ↗