Pioneer Valley High School Student Dies in River Drowning

Published
June 23, 2026
Outcome
Fatal
Location
Three Rivers, California
near Sequoia National Park
Incident type
Drowning

Summary

Drowning Three Rivers California in Three Rivers, California: Andrea Diaz Mondragon, a 17-year-old Pioneer Valley High School student, died after slipping into the water in Three Rivers near Sequoia National Park on Friday. She was with family members and friends when the accident happened, and rescue attempts were unsuccessful, leading to her drowning. She had just completed her junior year at the high school in northeast Santa Maria.

Publicly reported parties

Name Role Status
Andrea Diaz Mondragon Unknown Fatal

Original reporting

Pioneer Valley High School Student Dies in River Drowning | Local News | Noozhawk

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