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Bedrock & surficial geology · BCGS

Read the rocks that host the gold.

Seamless bedrock geology and Quaternary surficial cover from the BC Geological Survey — the units, faults and glacial story that control where BC's gold sits.

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What it is

Gold follows geology

BC's gold sits in particular belts, faults and intrusive contacts — and is then reworked by glaciation. Read the bedrock and the surficial cover together and you read where the gold came from and where it ended up.

What the layer shows you

Four ways prospectors put it to work

01

Host rocks at a glance

See the belts, intrusions and units that carry gold.

02

Faults & contacts

Structures where gold concentrates.

03

Surficial cover

Quaternary geology shows what's hiding the bedrock.

04

Tie it to the surface

Overlay geochem and occurrences to see why an anomaly sits where it does.

In the app

Bedrock and the glacial cover

Bedrock geology

Seamless BCGS bedrock.

Surficial geology

Quaternary glacial cover.

FAQ

Geology questions, straight answers.

The BC Geological Survey (BCGS) seamless bedrock geology, plus Quaternary surficial mapping.

BC is heavily glaciated — the surficial layer shows till, glaciofluvial and alluvial cover, which controls placer ground and how geochem signals move.

Survey-scale bedrock units, contacts and structures — enough to read the host rocks and the cover over them.

Across British Columbia.

Stop guessing. Start finding.

Every claim, every layer, all of British Columbia — on one map you can take off-grid.

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