UPDATE: Wednesday, 8 a.m. 

Fire crews said this morning that the Sand Fire has burned 4,240 acres near the town of Plymouth and is 90 percent contained.

The acreage on the fire increased because of more precise GPS mapping.

The fire has burned a total to 66 structures, including 19 homes. 

The fire started about 4:30 p.m. Friday afternoon in a very remote area.

Patrol and mop-up of the fire will continue for several days.

Rugged terrain and hot, dry weather conditions in addition to hazards associated with mines within the fire area continue to be a challenge for firefighters.

The cause of the fire is thought to be from a vehicle going into dry vegetation, according to the Cal Fire website.

Two people have received minor injuries from the blaze.

All evacuation orders for the fire have been lifted and all closed roads have been re-opened. 

Cal Fire is encouraging those returning to their homes to use caution and drive safely as there will be fire equipment and firefighter activity in the area.

The Red Cross evacuation center that was set up at Ponderosa High School has been closed. 

In response to the Sand Fire, the County of  El Dorado has set up a hotline and webpage for information regarding County services available to those affected by the natural disaster.

The phone number is (530) 642-SAND.  The hotline will be available from 7am - 7pm, Monday - Friday.

Emails may be sent to sandfire.edcservices@gmail.com.

The County also has a "Sand Fire" icon displayed on its homepage where relevant information will be updated.

Information will also be updated via the County’s Twitter page: @CountyElDorado  

Get the latest fire statistics from Cal Fire, here.

Stay tuned to NewsRadio KFBK and KFBK.com for updates on this developing story.