BOULDER, Colo. -- A woman riding a mountain bike on a Boulder Open Space trail was knocked down and stepped on by a rogue cow Monday.

The woman, who was not identified, was on the South Boulder Creek Trail when she stopped to let a cow pass. According to the woman, the cow knocked her to the ground and then walked on her legs.

The cow continued down the trail and the woman refused medical treatment.

Open Space rangers said the area on Marshall Mesa is leased by ranchers and the owner of the cow was contacted regarding the renegade cow, which had left the scene by the time rangers arrived.

The Boulder Daily Camera reported that another woman was rammed by a cow in the same area in 2003, after the woman accidentally ran between the cow and her calf. The woman suffered a fractured pelvis in that incident.