Wynn Resorts has closed a land deal with the MBTA, buying a 1.75 acre tract of land off Rte 99 in Everett for $6 million, according to an announcement released Tuesday.

The land provides an easy access option for the proposed site of the $1.6 billion resort and casino, located on a 33 acre parcel that abuts the Mystic River in Everett.

The state’s Gaming Commission approved the casino project last fall over Mohegan Sun’s plans for Suffolk Downs, the historic racetrack that straddles the Revere/East Boston line.

Pre-construction soil boring has been ongoing for several months at the Wynn Everett site, while site preparation and remediation is expected to start this summer.

“The process of building Wynn Everett is moving forward exactly as planned,” said Robert DeSalvio, president of Wynn Everett, through a statement. “After an extended period of public process and due diligence, we’re checking off the boxes and hitting the milestones we need to hit. Right now, there are teams of people in Massachusetts and Las Vegas working around the clock to make sure that permitting, design and planning continue to progress smoothly and building can start as soon as possible.”