A Rio woman found guilty of leading authorities on a drunken hourlong chase over three counties did not endanger the life of an officer involved, according to a jury.

Following two hours of deliberation at a trial Thursday, a 12-member jury found Stacey E. McMahon, 42, of Rio, guilty of felony bail jumping and eluding officers, and of misdemeanor drunken driving as a fourth offense and operating with a prohibited blood-alcohol concentration. The felony charges carry a possible maximum initial penalty of 4 1/2 years in prison.

The jury found McMahon not guilty of felony first-degree recklessly endangering safety.

The charges relate to an hourlong chase shortly after midnight May 2, 2008, when McMahon was stopped by a Columbus police officer after a witness spotted her driving erratically from the Columbus West Travel Center.

McMahon pulled over, but then drove quickly away, leading the officer on speeds up to 110 mph south on Highway 73, while weaving in the road and crossing the center line, according to court records.

McMahon lead officers into Dane County, then back to Columbus. At one point, when McMahon stopped her vehicle in the middle of the road, the officer stopped in front of McMahon's vehicle, then drew a gun and pointed it at McMahon, yelling at her to put her hands in the air.

The officer testified that McMahon revved the engine of the vehicle, and, when the officer stepped closer to the squad car, sped forward, coming within six inches of the squad car and nearly striking the officer.

The chase continued through Columbus and toward Randolph. An officer with the Fox Lake Police Department set up road spikes in the village of Fox Lake, which punctured the driver's side front tire on McMahon's vehicle, but she did not stop, the complaint stated.

McMahon was forced to stop after the remaining tires were punctured by another set of road spikes; she was taken into custody about 1:30 a.m.

A blood test later revealed that McMahon's blood-alcohol level at the time was greater than 0.182, according to testimony.