Documents filed with the Las Vegas Planning Commission have revealed some details about the secretive 18 Fremont project, the downtown resort that will occupy the space that formerly housed the Las Vegas Club, Girls of Glitter Gulch and Mermaids.

According to the filing, plans call for a 777-room hotel and 118,000-square-foot casino with a sports book.

There will also be a rooftop lounge, pool and spa, several restaurants and bars and a 1,500-spot parking garage built across the Main Street hotel with a bridge connector. Neither the name (if not 18 Fremont) nor the building timetable was revealed.

Mariah returns

Mariah Carey is returning to Las Vegas and the Colosseum at Caesars Palace. “The Butterfly Returns” residency will run from July 5 through September. Tickets range from $59 to $259.

Outdoors again

The first large-scale outdoor concert since the Oct. 1 Strip shooting has been announced for Sept. 22. The Strip/Sahara corner grounds will be the site of “Daytime Stage,” part of the iHeartRadio Music Festival headquartered at the T-Mobile Arena.

ZorkFest

A unique gathering of gambling and travel experts, including several of the top Las Vegas podcasters, will convene at Treasure Island for the ZorkFest Conference that runs Friday-May 27. There’s a fee for this event, but it’s a unique opportunity for casino-travel fanatics to hang out in one place. Get information at TravelZork.com.

Question: In light of the Supreme Court decision to allow sports betting outside of Nevada, how soon will we be able to bet on sports in other states?

Answer: Possibly within weeks in New Jersey, and perhaps as early as football season in a handful of states, including Pennsylvania, West Virginia and Mississippi. Most states, however, have a long way to go before initiating sports wagering. In-fighting for the concessions and legal barriers will likely keep most states on the sidelines for at least a year or two.

For more information about Las Vegas shows, buffets, coupons and good deals, go to LasVegasAdvisor.com.