CHARLOTTE, N.C. -- Friends of a missing Charlotte woman say they have confirmed the last place she was before she disappeared.
"We know that at 5:58 p.m. on Monday, Holly was in North Wilkesboro," said her longtime friend Liz Stafford Ajello.
Park Police say Holly's cellphone was pinged on park property, giving search operations a more specified area to look.
Fischer disappeared after leaving her parents' home in Knoxville Monday, heading to Charlotte. She never arrived.
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Fischer's roommate contacted her parents Wednesday, and friends like Ajello have been searching ever since. Ajello has been working with police to track her down.
A police review of Fischer's cell records show she drove east on I-40 from Tennessee, then unexpectedly changed directions at I-77, said Ajello.
"We now know she, for some reason, made a turn and instead of going south, she went north on I-77," said Ajello.
After turning north on I-77, Fischer's cell turned north on U.S. 421 and heading back towards the mountains.
The last "ping" was detected near Wilkesboro, about 20 minutes from her parents' mountain home in West Jefferson.
That is where Ajello said she and friends started their search of nearby roads on Sunday.
People met at the McDonald's on U.S. 421 at Hwy. 16 at 9:30 Sunday morning.
"We are going to search all day, " said friend Nicole cooper "...as long as the sun allows. Then we'll go back out tomorrow if we have to."
Another group of searchers, some who they don't know, will meet them along the way.
"This is great so many people are helping out to find Holly." said Cooper.
The group took flyers of the missing 39-year-old woman to hand out in the area.
Meanwhile, another group of friends is assembling in Charlotte at the same time. They will be searching the mountainside around Fischer's parents' home in West Jefferson.
"We are ready to go down and search in the deep terrains," said Georgia Bush. "We have people who have ideas of where she could be and we're just going to follow those leads."
The Charlotte friends are meeting up at the Food Lion on Mt. Holly-Huntersville Road and WT Harris Blvd., near Northlake Mall, at 9 a.m. Sunday.
Fischer's friends have started a Facebook page called, "Missing: Holly Fischer: CLT area," which already had more than 1,500 "likes" in one day.
They will be updating any friends who want to join the search on the Facebook page all day Sunday.
Ajello believes finding Fischer's car is the key to finding her. Fischer was driving a 2004 dark grey Infiniti FX35 crossover-SUV type car when she disappeared. It has a North Carolina tag, XYH 6678.
"We need Holly's car. We have got to find her car. If we find her car, we find Holly," said Ajello. "We've gotta bring our girl home."
The Knox County, Tennessee, Sheriff's Office is the lead investigative agency on this case. Anyone with information should call them.