This is part of my research for learning about when the last small ice age was between 10,000 and 20,000 years ago in the Sierra Nevada Mountains

begin quotes: AI Overview

California's permanent mountain glaciers have never completely melted off in human history. 

Glacial History

Continuous survival: Recent scientific studies show that glaciers in the Sierra Nevada have stayed intact for at least 10,000 to 20,000 years. 
Human timeline: These ice masses survived past warm periods and have been present since before humans first arrived in North America. 
Current status: While the glaciers are shrinking rapidly due to climate change, scientists project they will not melt away completely until somewhere between 2050 and 2100. 

If you are asking about seasonal snowpack or ice on specific lakes rather than ancient glaciers, please tell me the mountain range or lake name so I can provide the right details.

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  KQED

  California’s Ancient Glaciers Are Melting Away for the First Time in Human History | KQED

  Oct 1, 2025 — According to new research, California's Sierra Nevada glaciers have remained intact for at least 10,000 years. However, the glacie...

  
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  Facebook·Climate Science and Environmental Issues

  California's Sierra Nevada glaciers to melt by 2100 - Facebook

  Oct 7, 2025 — “Deep in California's Sierra Nevada, massive glaciers are disappearing and projected to melt away completely by the beginning of t...

  

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AI can make mistakes, so double-check responses

California's Ancient Glaciers Are Melting Away for the First ...

KQED

https://www.kqed.org › science › californias-ancient-gla...

Oct 1, 2025 — New research shows that California's Sierra Nevada glaciers, which will vanish in decades, have remained intact for at least 10,000 years.

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