Lost California Treasure
SHIPWRECK Protected / Restricted

Wreck of the SS City of Rio de Janeiro

Known as the 'Titanic of the Golden Gate,' this passenger steamship sank in 1901 after striking a rocky ledge near Fort Point in a dense fog. Rumors immediately spread that the ship was carrying a secret shipment of silver bullion and gold coins destined for China, valued up to.

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AI Summary & Quick Facts

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  • Target Name: Wreck of the SS City of Rio de Janeiro
  • Registry Category: shipwreck
  • Geographic Location: Entrance of the Golden Gate, San Francisco Bay (Coordinates: 37.81770, -122.48360)
  • Land Status: State Park / Marine Sanctuary (Restricted) (Classified as Protected / Restricted)
  • Primary Historic Source: NOAA Office of National Marine Sanctuaries - City of Rio de Janeiro shipwreck discovery
  • Search & Usefulness Rating: Score 45/100 (Field Readiness: Advanced Fieldwork)
  • Summary Overview: Known as the 'Titanic of the Golden Gate,' this passenger steamship sank in 1901 after striking a rocky ledge near Fort Point in a dense fog. Rumors immediately spread that the ship was carrying a.

Historical Overview

Known as the 'Titanic of the Golden Gate,' this passenger steamship sank in 1901 after striking a rocky ledge near Fort Point in a dense fog. Rumors immediately spread that the ship was carrying a secret shipment of silver bullion and gold coins destined for China, valued up to $6 million. In 2014, NOAA used sonar and remotely operated vehicles to locate the collapsed hull under 287 feet of water and heavy silt, but no treasure has ever been recovered.

Field Search & Recovery Tips

The wreck is located in a dangerous, high-traffic shipping lane with extremely strong tidal currents, low visibility, and deep mud. Salvaging or diving the wreck is strictly prohibited without state permits.

Field Action Checklist

1
Treat this as specialized maritime or technical fieldwork and verify vessel traffic, weather, and dive limits before travel.
2
Use non-invasive documentation only unless a permit or lease explicitly authorizes more.
3
Prepare emergency communication, tide/current checks, and a shore contact plan.
4
Check tides, swell, marine protected areas, and vessel traffic before any shoreline or water visit.

Related shipwrecks

  • Wreck of the Frolic shipwreck · Point Cabrillo, Mendocino County · High probability

    The Frolic was a fast Baltimore clipper ship engaged in the illicit opium trade between China and California. In July 1850, carrying a cargo of Chinese silks, porcelain, and household goods, she ran aground on the.

  • Wreck of the SS Brother Jonathan shipwreck · Off Crescent City, Del Norte County · High probability

    The SS Brother Jonathan was a luxurious paddle steamer carrying passengers and a cargo of gold coins from San Francisco to Portland. In July 1865, it struck an uncharted rock (now called Jonathan Rock) off Crescent.

  • Unidentified Dangerous Wreck shipwreck · California Coastal Waters · Medium probability

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  • Unidentified Dangerous Wreck shipwreck · California Coastal Waters · Medium probability

    A charted marine wreck recorded in the NOAA Electronic Navigational Charts database (OBJECTID 545942). Classified as a dangerous wreck. Source record date: 201305.

  • Unidentified Dangerous Wreck shipwreck · California Coastal Waters · Medium probability

    A charted marine wreck recorded in the NOAA Electronic Navigational Charts database (OBJECTID 545943). Classified as a dangerous wreck. Source record date: 20000708.

  • Unidentified Non-Dangerous Wreck (Test) shipwreck · California Coastal Waters · Medium probability

    A charted marine wreck recorded in the NOAA Electronic Navigational Charts database (OBJECTID 545944). Classified as a non-dangerous wreck (test). Source record date: 20000708.

Research Dossier
45
Usefulness Rating Medium Potential
Land Status Designation Protected / Restricted

State Park / Marine Sanctuary (Restricted)

Field Readiness Mode Advanced Fieldwork
Research Coordinates
37.81770, -122.48360
Google Maps ↗ OpenStreetMap ↗ CalTopo ↗

Legal & Permit Review

REQUIRED California State Lands Shipwreck Info Check California submerged-land and shipwreck restrictions before diving, probing, or salvage activity. ↗ REQUIRED California State Parks Detector Rule Verify state-park detector and cultural-resource restrictions before bringing equipment. ↗ REQUIRED NPS Archeology Guidelines Treat NPS archeological landscapes as non-collection research and verify unit-specific rules. ↗ RECOMMENDED California State Lands Confirm whether tidelands, submerged lands, or navigable waterways are involved. ↗ RECOMMENDED NOAA Tide Predictions Check tide windows before shoreline, surf-zone, or intertidal observation. ↗ CONTEXT NOAA ENC Direct Compare charted wreck or obstruction context against current NOAA navigation data. ↗

Recommended Outfitting

Sidescan Sonar Magnetometer ROV with Claw Deep Dive Suit
Reference Work Citation

NOAA Office of National Marine Sanctuaries - City of Rio de Janeiro shipwreck discovery

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