Lost California Treasure
SHIPWRECK Protected / Restricted

SS Palo Alto Concrete Ship Wreck

The SS Palo Alto was a historic concrete oil tanker built in 1919 by the San Francisco Shipbuilding Company. In 1929, the Cal-Nevada Company purchased the ship and towed it to Seacliff State Beach, grounding it in shallow water and constructing a pier out to it. It was.

AI Summary & Quick Facts

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  • Target Name: SS Palo Alto Concrete Ship Wreck
  • Registry Category: shipwreck
  • Geographic Location: Seacliff State Beach, Aptos, Santa Cruz County (Coordinates: 36.96960, -121.91400)
  • Land Status: Seacliff State Beach (California State Parks; protected historic concrete ship, no salvaging) (Classified as Protected / Restricted)
  • Primary Historic Source: California State Parks Seacliff Archives / California Historical Landmark No. 954
  • Search & Usefulness Rating: Score 62/100 (Field Readiness: Archive / View Only)
  • Summary Overview: The SS Palo Alto was a historic concrete oil tanker built in 1919 by the San Francisco Shipbuilding Company. In 1929, the Cal-Nevada Company purchased the ship and towed it to Seacliff State Beach.

Historical Overview

The SS Palo Alto was a historic concrete oil tanker built in 1919 by the San Francisco Shipbuilding Company. In 1929, the Cal-Nevada Company purchased the ship and towed it to Seacliff State Beach, grounding it in shallow water and constructing a pier out to it. It was outfitted as an amusement vessel with a dance floor, cafe, swimming pool, and carnival booths. A major storm cracked the hull in the 1930s, and it was eventually stripped and left as a fishing pier. Over decades of storms, the ship has fragmented, serving today as a critical marine habitat and a legendary historic monument.

Field Search & Recovery Tips

The ship is visible directly from the pier at Seacliff State Beach. Diving or swimming inside or immediately next to the concrete hull is extremely hazardous due to sharp rusted rebar, collapsing concrete blocks, and strong surge. Removal of any material is strictly prohibited under California State Park rules.

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.
4
Check tides, swell, marine protected areas, and vessel traffic before any shoreline or water visit.

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Research Dossier
62
Usefulness Rating Medium Potential
Land Status Designation Protected / Restricted

Seacliff State Beach (California State Parks; protected historic concrete ship, no salvaging)

Field Readiness Mode Archive / View Only
Research Coordinates
36.96960, -121.91400

Recommended Outfitting

Binoculars Polarized sunglasses Historical overview sheet
Reference Work Citation

California State Parks Seacliff Archives / California Historical Landmark No. 954

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