Photo: JJ Harrison / CC BY-SA 3.0
MarketsColorado Minerals, Fossils & Gems Show
This drop already happened.
- When
- Sep 11 - Sep 20, 2026 · 9:00 AM
- Where
- Denver Coliseum, Denver
- Price
- Free
For ten days every September, the Denver Coliseum becomes one of the largest mineral and fossil showcases in the country, and it costs nothing to walk in. The 2026 show runs September 11 to 20 across more than 100,000 square feet of specimens.
More than 300 dealers sell everything from museum-grade crystals to dinosaur bone, with free parking on site. Hours run 9 AM to 6 PM daily.
More like this: Denver markets, or everything happening in September 2026.
More Denver worth knowing about.
Weekly events, no noise.
Coming up
Sun, Oct 25 · Stanley Marketplace
OFM Queer Bazaar
Out Front Magazine hosts the OFM Queer Bazaar at Stanley Marketplace in Aurora on October 25, 2026, from 11 AM to 5 PM, spotlighting queer-owned makers.
Fri, Nov 6 · Stanley Marketplace
First Fridays Creator Market at Stanley Marketplace
The First Fridays Creator Market returns to Stanley Marketplace on Friday, November 6, 2026, from 6 to 9 PM, with 45 booths of local artists inside the Aurora food hall, free to attend.
Nov 6 - Nov 23 · Lakewood Cultural Center
Holiday Pop Up Market at Lakewood Cultural Center
The Lakewood Cultural Center's Holiday Pop Up Market puts local makers' work on sale in its Corner Gallery from November 6 through November 23, 2026, with free admission.