A wildland fire that sparked near Sliger Mine Road in Greenwood shortly after 3 p.m. Tuesday has burned 104 acres according to a Thursday morning update from Cal Fire. The fire is active on the south side of the Middle Fork American River canyon in El Dorado County and 45 percent contained.

All evacuations have been lifted and all roads are open with the exception of Drivers Flat Road at Foresthill Road.

Residents in the area of Sliger Mine Road north of Spanish Dry Diggins Road were evacuated Tuesday afternoon but as the fire moved further east up-river those residents were able to return home.

On Wednesday mandatory evacuations were in effect for residents on the north side of the canyon in Placer County. McKeon Ponderosa Way and all roads leading to the west from McKeon Ponderosa Way, as well as Moshiron Drive, Shady Oak Drive, Quarry Turn Road, Pine Crest Drive and Gas Canyon Court were evacuated.

Fire crews were concerned embers would cross the river, starting another fire in a more populated area.

“Those homes are much closer physically to the fire than any of the homes on the El Dorado County side,” said Cal Fire Amador-El Dorado Unit Public Information Officer Brice Bennett in a Wednesday morning video post to social media.

As of Thursday morning the blaze’s forward progress had been stopped according to Cal Fire. Firefighters are now working to strengthen containment lines. The fire is located in “extremely steep terrain” making access difficult.

Scanner traffic Tuesday afternoon indicated the fire burned up slope, through heavy timber at a moderate rate of speed. Cal Fire responded with air tankers dropping fire retardant to form containment lines and hand crews reinforcing from the ground.

The cause of the fire is under investigation.

Responding agencies include: El Dorado County Sheriffs Office, California Highway Patrol, California State Parks, U.S. Forest Service, Georgetown, El Dorado County Fire District, Garden Valley, Mosquito, Diamond Springs, Rescue and Pioneer fire departments.