JACKSON (WNE) — A small wildfire that broke out near Signal Mountain in Grand Teton National Park has been fully contained.

The Signal Flat Fire was first reported on Saturday afternoon and was just under eight acres before it was contained by fire crews on Sunday.

The fire was determined to be caused by lightning. Signal Mountain Road remains closed until further notice.

A crew of 35 firefighters — including a 20-person U.S. Forest Service crew from Helena, Montana — worked to contain the fire using two fire engines and two helicopters. Choppers dropped water from Jackson Lake on the fire on Saturday.

The crews cooled remaining hot spots and secured fire lines on Sunday.

Fire danger remains high in Teton Park and the surrounding area. Visitors are asked to be extra vigilant with campfires, including drowning fires until they are cold to the touch, park spokesperson Emily Davis said.