Editor's note: This story has changed from its original version.

RAPID CITY - Becky Hale and Becky Drury have been neighbors for 21 years. And they are about to get closer.

The two walkers are building endurance for the 60-mile, three-day walk in Minneapolis.

"She's talked me into doing other things, but never anything this meaningful," Hale said.

According to the Susan G. Komen for the Care foundation, the Breast Cancer 3-Day is a 60-mile walk for women and men who want to make a personal difference in the fight against breast cancer. Participants commit to fundraising, training and dedicating a weekend. The event will generate millions of dollars to pay for critical breast cancer research, education and community health programs.

But, to the three women - because Hale's daughter Rae Hale is also planning on going - it is about much more than research. It is about dedicating yourself to a cause.

"When you have a loved one go through treatment, there is nothing you can do," Hale said. "But a three-day walk is something we can do that can really make a difference for someone else."

Hale and her daughter are walking for their mother and grandmother, Glyde Miller, who died five years ago in her 50s. Hale said her mother was cancer-free for 20 years, but she had a recurrence of the cancer and went through several rounds of chemotherapy.

"She was a very brave woman that I admire," Hale said. "I don't want someone else's mother going through that. I would like to see a cure in my lifetime.

"She never complained and tried to live her life as normally as possible. I hope I could rise to that level of courage and grace if I am ever so tested."

Drury is walking for her cousin, Laurie.

"She's a cousin by birth, but a sister by choice," she said.

Her cousin's cancer is in remission, and Drury watched her go through the treatments. That is when she joined Susan G. Komen for the Cure as a volunteer.

"One in eight (women) is diagnosed," Drury said. "That is just too many."

Drury said the South Dakota affiliate of the Susan G. Komen for the Cure foundation receives between $50,000 and $70,000 to help educate people about breast cancer, conduct screenings and help the underinsured and uninsured.

"It's just a way of helping women get through the process," Drury said.

Eighty-five percent of the funds earned for the walk go to the Susan G. Komen for the Cure foundation, with the other 15 percent going to a National Philanthropic Trust Breast Cancer Fund, Hale said.

"All money give is to find a cure and that is not true of all organizations," Hale said.

The women are in the middle of a six-month training schedule that requires them to walk 35 miles in a week.

The women walked 14 miles last week and participated in the Deadwood-Mickelson Trail half marathon last month.

During the walk, Hale and Drury will camp in a two-man pink tent and they will carry a South Dakota flag, which they requested from Gov. Mike Rounds. The walkers are not allowed to carry more than 35 pounds, but the walk organizers provide food during the day and entertainment at night.

In order to participate in the walk, the three walkers raised $2,300 for expenses.

The three women hosted a bake sale on Valentine's Day, and they sent letters to all businesses they patronize to help.

"I think my mother would like it that we are walking," Hale said. "I really believe this will be a life-altering experience."