LegacyLandmarks
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Event Story Node

~66 Million Years Ago

Bedrock Foundation: Mesozoic sedimentary and volcanic rocks

Situated securely over bedrock composed primarily of mudstone-carbonate-sandstone-conglomerate dating back to the Cretaceous era.

Geologicalopen-data78% confidencecoordinate match

Why This Moment Matters

Establishes the deep-time landscape context that shaped later settlement, access, ecology, and land use.

Connected People, Places, And Records

Elkhorn Rd, Yorkville, CA 95494
property - about property - 90%

Current report target

Bedrock Foundation: Mesozoic sedimentary and volcanic rocks
geological_feature - geologic context - 78%

Situated securely over bedrock composed primarily of mudstone-carbonate-sandstone-conglomerate dating back to the Cretaceous era.

Macrostrat Deep-Time Engine
source - sourced from - 78%

Macrostrat Deep-Time Engine; source type: open-data; confidence: 78%; locality match: coordinate

Yorkville
place - within city or place - 72%

Resolved report locality

Mendocino County County
place - within county - 70%

Resolved county context

CA
place - within state - 68%

Resolved state context

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