Longmont Rockhounding Club

2026 Denver Gem and Mineral Showcase
The Denver Gem and Mineral Showcase is a world-renowned gem, mineral, fossil, and jewelry event held in the Denver metropolitan area, Colorado. As the second-largest showcase of its kind in the United States, it features over 1,000 international vendors across multiple independent show venues. Visitors can explore a vast selection of gemstones, rare minerals, prehistoric fossils, and handcrafted jewelry, alongside educational exhibits and expert demonstrations.

For more information, go to https://denvergemshow101.com/about-the-showcase/

Just Minerals and Crystals event
September 7-12 at the Doubletree-Hilton in Thornton
83 East 120th Avenue, Thornton, CO 80233
Free parking and free admission

https://denvergemshow101.com/just/

Colorado Independent Warehouse Show-Fall
September 7 - 19th
810 Quale St at the rock warehouse
Free admission and parking

https://denvergemshow101.com/independentwarehouseshow/

Denver Fine Minerals Co-op Show
September 8 - 16
Drury Plaza Hotel in Westminster
10393 Reed St., Westminster, Colorado

Free admission and parking

https://denvergemshow101.com/fine-minerals-co-op/

Colorado Mineral and Fossil Fall Show
September 9 - 14
Delta Hotels Denver Thornton
10 E 120th Ave, Northglenn, Denver

https://denvergemshow101.com/coloradomi ... ssilshows/

Denvers Original Gem and Mineral Show
September 10-13
The Westin Westminster
10600 Westminster Boulevard

Free admission and parking

https://denvergemshow101.com/denversori ... neralshow/

InterGem Denver Wholesale Gem & Jewelry Show
September 10 - 13
The Brighton
3403 Brighton Blvd., Denver
Wholesale and retail

https://denvergemshow101.com/intergem/

Hard Rock Summit Denver
September 10-18
The Westin Westminster
10600 Westminster Boulevard
Free admission and parking

https://denvergemshow101.com/hardrocksummit/

Colorado Minerals Fossils & Gems Show
September 11-20
Denver Coliseum
4600 N Humboldt St, Denver
Free Admission and parking

https://denvergemshow101.com/comfg-show/

Denver Mineral, Fossil, Gem & Jewelry Show
September 11-20
National Western Complex
4655 Humboldt St., Denver
Free admission and parking

https://denvergemshow101.com/denvermfgjshow/

Denver Expo Show
September 11-20
National Western Complex (Level 2)
4655 Humboldt St., Denver
Free Admission and parking

https://denvergemshow101.com/denver-expo-show/

Miner’s Co-op Show
September 11-20
National Western Complex (Level 1)
4655 Humboldt St., Denver
Free admission and parking

https://denvergemshow101.com/miners-co-op-show/

Rock and Rail Annual Show at the Boulder County Fairgrounds
December 13-15
Boulder County Fair Grounds
9595 Nelson Road, Longmont, Colorado 80501

https://flatironsmineralclub.org/about/ ... al-show-2/