Denver, Colorado

Denver Coliseum

The 1951 arena next to the National Western complex in Elyria-Swansea, host each September to the free Colorado Minerals, Fossils & Gems Show. See the upcoming schedule below.

Denver Coliseum 2026 schedule

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Sep 11 - Sep 20 · Denver Coliseum

Colorado Minerals, Fossils & Gems Show

The free Colorado Minerals, Fossils & Gems Show fills the Denver Coliseum with more than 300 dealers from September 11 to 20, 2026.