UPDATE 4/22/14 @ 11:10 p.m.
GLEN JEAN, W.Va. (WSAZ) -- An Illinois-based firefighting crew has joined the effort to contain a wildfire in the New River Gorge.
The 20-person hot shot crew worked all day Tuesday to build a fire line to keep the flames from spreading.
The crew joined National Park Service staff and Mount Hope firefighters.
The wildfire was reported Sunday. It has burned about 130 acres since then.
The Endless Wall Trail and the Fern Creek and Nuttall parking areas remain closed, along with climbing in the fire's vicinity.
The cause of the fire has not been determined.
Park official Robin Snyder says some popular climbing areas in the vicinity of the fire were also closed Monday while crews from the National Park Service and the Fayetteville and Nuttall fire departments battled the blaze. Snyder estimated that the fire covered 15 to 20 acres.
The steep and treacherous terrain, low humidity and an upslope wind prompted the park service crew to reassess the tactic for attacking the fire and call in additional resources and crews.
Snyder said the cause of the fire is under investigation.