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Indian Wars and Frontier Conflicts

Bloody Island Massacre

1850
California
Era
Indian Wars and Frontier Conflicts
Year
1850
Location
California
Status
Historical record
The Battle

History & Significance

Bloody Island Massacre was a Indian Wars and Frontier Conflicts engagement fought in California, 1850. It was a United States Army victory.

Lyon's cavalry surrounded a Pomo island encampment in retaliation for the killing of two settlers (who had enslaved and murdered Pomo). Soldiers killed an estimated 60-100 Pomo; the actual number may have been 200+. One of the earliest and most notorious massacres of the California Indian Wars. The site is a California State Historical Landmark.

Result
United States Army victory
Forces engaged
Bvt. Maj. Nathaniel Lyon, 1st Dragoons vs. ~400 Pomo men, women, and children on island in Clear Lake
Casualties
60-200 Pomo killed (mostly unarmed); 0 US killed
Outcome
Mass killing of Pomo on island; survivors pursued and killed in boats

Approximate location. The nearest recorded settlement is shown; the exact site is unrecorded.

Questions & Answers

Frequently Asked Questions

When did Bloody Island Massacre take place?
Bloody Island Massacre took place in 1850.
Where was Bloody Island Massacre fought?
Bloody Island Massacre was fought in California, United States.
What was the significance of Bloody Island Massacre?
Lyon's cavalry surrounded a Pomo island encampment in retaliation for the killing of two settlers (who had enslaved and murdered Pomo). Soldiers killed an estimated 60-100 Pomo; the actual number may have been 200+. One of the earliest and most notorious massacres of the California Indian Wars. The
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Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
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Spotlight
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Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
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Source

This page is compiled from cited public sources.

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