Hundreds of candidates lined up in Denver on Thursday to attend CannaSearch, billed as the marijuana industry's first job fair. Fifteen companies took part in the event, looking to fill positions in sales, marketing and accounting in addition to more specialized fields, like grow operations.

The job fair was organized by O.penVAPE, a company that makes and sells vaporizers and other devices, and organizers said they originally expected only a few hundred candidates to show for the event.

Hundreds in fact did show, with many job hopefuls waiting at least 90 minutes to get inside the job fair in a line that wrapped completely around two city blocks.

Charlie Bauer, one candidate in need of a job, said he traveled from Saint Louis to stake a claim in Colorado’s newest gold rush.

"I know this industry is growing," Bauer said.  "I know this industry is going to continue exploding. There are positions available and this is why I’m here."