For the first time ever in history, a native American tribe intends to grow and sell marijuana on its reservation.

The small South Dakota Indian tribe known as the Flandreau Santee Sioux already has a successful casino, a 120-room hotel and a buffalo ranch.

Now, it is undertaking a new venture: opening the nation's first marijuana resort. This experience could provide a new way of making money for tribes that are seeking economic opportunities beyond casinos.

Santee Sioux leader plans to grow their own weed and sell it in a smoking lounge that includes nightclub, bar and food service, slot machines and an outdoor music venue.

Tribal President, Anthony Reider visualizes the resort as "an adult playground."

The tribe says the project could generate up to $2 million a month in profit which has attracted the interest of many other tribes, just like the slot machines and the gaming tables did 27 years ago.

But, growing marijuana is not a simple task. They hired a Denver-based consulting firm Monarch America to teach them the basics.

A marijuana resort open to the public has never been tried in the US, not even in states such as Colorado where pot is fully legalized.

The first joints are expected to go on sale December 31 at New Year's Eve party.