Family and friends are still searching for Rachel Cooke, the 19-year-old who went missing in Georgetown last month.

She was last seen jogging near her parent’s home on Jan. 10. For weeks, search teams combed the area near where she disappeared, but turned up with nothing. Since then, her family has posted flyers, run television commercials and highlighted her picture across an I-35 billboard.

Though it’s been more than a month, they still haven’t given up.

On Saturday dozens of volunteers will travel to major cities throughout Texas, posting flyers all along the way. Cooke's family has also upped the reward to $50,000.

Rachel’s grandparents, Glenn and Louise Cooke, drove an hour to Burnet on Saturday, part of the 60-car fleet of volunteers that covered a 200-mile radius from Georgetown.

"We are just doing everything conceivable we can do to bring Rachel back," her grandfather said.

The group is replacing old flyers with new ones that indicate the increased reward. The new flyers also have an updated description of Rachel; she has tattoos of two heart-shaped cherries on her left shoulder and a black star on her foot.

There's also a sketch of a man police want to question.

"We think it's imperative to get the info out everywhere that we can,” Glenn said. “Because we know that the more exposure is given, the more possibility someone will with information."

"This is the hardest period of our lives,” Rachel’s father, Robert Cooke, said. “I don't think you could go anything worse than this -- not knowing where Rachel is, if she is dead or alive."

If you have information about Rachel Cooke's disappearance, please call the Williamson County Crime Stoppers at 1-800-253-STOP.