SPRINGFIELD - The Blagojevich administration is planning to cut more than 450 jobs and close nearly two dozen state parks and historic sites in response to the state's lingering budget impasse.

One union official described the plan as a ''bloodbath'' that will have wide-ranging effects on the services provided to state taxpayers.

The Department of Children and Family Services will lose 304 positions, while the Department of Human Services will be cut by 73 employees. The Illinois Department of Natural Resources will lose 39 workers and the Illinois Historic Preservation Agency will be cut by 34 employees.

Parks targeted for closure include Moraine View State Park near LeRoy, Hidden Springs State Forest in Shelby County, Wolf Creek State Park near Windsor and Weldon Springs State Park in DeWitt County.

Historic sites on the chopping block include the David Davis Mansion in Bloomington, Lincoln Log Cabin near Charleston, the Bryant Cottage in Bement, the Cahokia Courthouse in Cahokia and Bishop Hill.

The cuts hit three sites in Randolph County - Fort Kaskaskia, Fort de Chartres and the Pierre Menard Home.

The historic sites will close Oct. 1 while parks will close Nov. 1.

Blagojevich has said the cuts are necessary because the governor slashed $1.4 billion from the state's spending plan in July. He says the Democrat-controlled legislature wanted to spend more money than the state will receive in the coming fiscal year.

State Sen. Dave Luechtefeld, R-Okawville, said the governor is trying to force the General Assembly to return to Springfield to approve new revenue streams.

''I know he's trying to make people feel the pain,'' Luechtefeld said.

State Rep. Bob Flider, D-Mount Zion, said he was "flabbergasted" to learn of the cuts from a vendor at one of the parks affected by the closing.

"The Blagojevich administration did not have the class to let me know so I can begin working on a solution to this problem," Flider said.

Flider said the closure of Wolf Creek State Park in his district would have a major impact on businesses that rely on the 400,000 visitors who use the facility.

Jonathan Goldman, director of the Illinois Environmental Council, called the cuts ''utterly appalling.''

''The governor is off at the Democratic convention in Denver hugging people. When he returns to Illinois there will be many families needing more than hugs,'' Goldman said.

DNR spokesman Chris McCloud said park entrances will be locked Nov. 1. People who venture into the parks after that date could be charged with trespassing.

''These aren't decisions we wanted to make,'' McCloud said.

The cuts come as other state agencies are grappling with the effects of the governor's actions.

On Wednesday, Comptroller Dan Hynes said his office was poised to lay off workers. Other statewide officers have imposed hiring freezes and are asking whether some workers want to take early retirement in a bid to trim costs.

Secretary of State Jesse White is mulling whether to close some driver's license facilities.

Blagojevich also has tied his plan to close Pontiac Correctional Center to the budget impasse.

The American Federation of State, County and Municipal Employees union vowed to fight to keep its workers on the job.

''Lawmakers should return to Springfield as soon as possible to take whatever action is necessary to fix the budget and stop these cuts,'' AFSCME Council 31 Executive Director Henry Bayer said.

The cuts at the Department of Natural Resources are troubling to some lawmakers because the agency has already lost scores of workers.

''It's obviously unfortunate,'' said state Rep. Kurt Granberg, D-Carlyle.

Granberg, who is retiring as a lawmaker, said it will be a challenge rebuilding the state park system if money is ever restored to reopen them.

''It's going to be a hard road,'' Granberg said.