Carl’s Jr. is celebrating 4/20 with a very on-trend sandwich. The Rocky Mountain High: CheeseBurger Delight (CBD) is a special one-off cheeseburger with plenty to offer; not least of all an infusion of CBD.

The Rocky Mountain High burger sports a pair o charbroiled beef patties, pickled jalapeños, pepper jack cheese and a delicate base of Carl’s Jr.’s signature Crisscut fries in between a premium bun. However, the burger’s main attraction comes courtesy of Santa Fe sauce, which adds both tangy zest and CBD infusion to the tall sandwich. This burger makes Carl’s Jr. the first quick service restaurant to launch a CBD-infused item, which will be tested exclusively in Colorado before anywhere else in the country.

Visit Carl’s Jr.’s Colorado Blvd. location in Denver to sample the Rocky Mountain High CBD burger on April 20, where it’ll be available for a mere 24 hours for $4.20 USD.