Welcome to the Hudson Valley, Plax!

And he thought Cowboys fans were nasty.

Plaxico Burress got a zero's welcome behind bars at Rikers Island, including taunts of "a - - hole!" and "The Giants suck!" according to jail guards.

"He was depressed," said one guard from Rikers, where the former Giants superstar spent his first-ever night behind bars. "He was trying to keep to himself, but everyone was yelling at him."

"These people got nothing," a second guard explained of the taunts. "What else are they gonna do?"

Burress began serving a two-year sentence yesterday for accidentally shooting himself in the thigh with his own Glock while drinking in the crowded VIP vestibule of the Latin Quarter nightclub in Midtown last November.

His stay at his first stop, Rikers, was brief. By 11 a.m. yesterday, he'd been driven upstate to the medium-security, 586-inmate Ulster Correctional Facility in Napanoch, an intake center where he'll be evaluated for more permanent placement elsewhere in the state prison system, said Correction Department spokeswoman Linda Foglia.