A 26-year-old woman was injured in a weekend trip-and-fall accident at McConnells Mill State Park in Slippery Rock Township, Lawrence County, authorities said.

The woman was walking on the Alpha Pass Trail around 6:30 p.m. Saturday when she apparently tripped on a root and fell, said Dustin Drew, manager for Moraine and McConnells Mill state parks. She reportedly injured an ankle.

“She had to be carried out by a Stokes basket,” Drew said.

A Stokes basket is a metal wire or plastic litter used by first responders to immobilize or transport a victim over difficult terrain.

Volunteer fire departments from Slippery Rock and Scott townships in Lawrence County and Portersville in Butler County, and Portersville EMS assisted in the rescue.

The woman, whose address was not immediately known, was taken to UPMC Jameson hospital in New Castle. Her condition was not known Monday.

Drew noted that the report is incomplete and no other information was available.