A 23-year-old woman was jogging on Five Creek path, near Americana and Park Ridge apartment complexes, at around 3:30 p.m. when a man confronted her.
The suspect said "Come here girlie," grabbed the woman by her forearms and brandished a box cutter, according to police.
He slashed at the woman's face and the victim raised her arms to protect herself. The victim's forearm was cut and she was treated at a hospital and released.
The suspect was described as a white man, about 30 years old, 6 feet 2 inches, with a lean build. He was wearing a dirt-stained white tank top and light blue shorts. He also has a 2-inch round tattoo on his forearm.
Police are urging residents to be vigilant while walking or jogging on the creek paths and to avoid using the paths alone.
Anyone with information regarding this incident is urged to call police at (707) 584-2600.