At least 150 people searched three miles of wooded road in Charleston County on Saturday in the hopes of finding a clue to the whereabouts of Brittanee Drexel.
The search will continue today with at least 30 more people, said Monica Caison, with the CUE Center for Missing Persons in Wilmington, N.C., which organized the search.
The CUE Center has organized several searches since the teen was last seen leaving the Blue Water Hotel on Ocean Boulevard April 25, 2009.
No significant finds were made on Saturday, but Brittanee Drexel's mother, Dawn Drexel, said she is optimistic.
"I'm hopeful that they'll get a tip called in or something that will bring us closer to what happened to Brittanee," Dawn Drexel said.
Searches began in Georgetown and Charleston counties after officials learned Drexel's cell phone gave off its last known signal on April 26, 2009, around U.S. 17 Bypass and the South Santee River in Georgetown County.
Caison said the CUE Center was asked by the Georgetown County Sheriff's Office to conduct a search of the area near Old Georgetown Road.
She said the area they are searching is about five miles and she hopes the volunteers will be able to search the remaining two miles today.
Dawn Drexel was on the scene of the search Saturday and said she plans to be there today as well.
Earlier this month, a specialized team of law enforcement professionals spent a week at the Myrtle Beach Police Department reviewing the case.
Members of Project Alert, a group of retired law enforcement professionals who are trained by the National Center for Missing and Exploited Children, reviewed the case with Myrtle Beach police investigators, but authorities have not released any new information.
Drexel, whose 19th birthday was Oct. 5, was 17 when she came to Myrtle Beach with some friends and without the consent of her parents.
Her case has been profiled on dozens of local and national television shows, billboards and websites.
Authorities say they will continue to profile her case with the hope that someone with information regarding her whereabouts will come forward with details.
Various rewards are available from law enforcement and a New York-based church for information about Drexel. Anyone with information regarding Drexel is asked to call Myrtle Beach police at 918-1382 or submit information online at helpfindbrittaneedrexel.com.
Reach GINA VASSELLI at 443-2434.