page_title: Chilcotin Group
hierarchical_section_title: Chilcotin Group
caption_attribution_description: Chilcotin flood basalts and trees in Chasm Provincial Park
context_page_description: Chilcotin Plateau basalts cover a large area in British Columbia. Basaltic lava formed a volcanic plateau running parallel with the Garibaldi Volcanic Belt, about 150 km from the ocean.
  During the Miocene and Pliocene, a volcanic field occurred in British Columbia's Interior Plateau. The basalt is assumed to cover up to 50,000 km² of the Pacific Northwest. It forms a medium-sized large igneous province, of volume 3300 km³.
  Volcanism still continues from time to time. Eruptions were most vigorous 6–10 million years ago and 2–3 mya, when most of the basalt was released. Smaller eruptions continued from 1.6 mya to 0.01 mya.
context_section_description: Chilcotin Plateau basalts cover a large area in British Columbia. Basaltic lava formed a volcanic plateau running parallel with the Garibaldi Volcanic Belt, about 150 km from the ocean.
  During the Miocene and Pliocene, a volcanic field occurred in British Columbia's Interior Plateau. The basalt is assumed to cover up to 50,000 km² of the Pacific Northwest. It forms a medium-sized large igneous province, of volume 3300 km³.
  Volcanism still continues from time to time. Eruptions were most vigorous 6–10 million years ago (mya) and 2–3 mya, when most of the basalt was released. Smaller eruptions continued from 1.6 mya to 0.01 mya.
caption: Basalt lava in Chasm Provincial Park
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