Hazel Robinson isn't sure why she has lived so long.

Her daughter, Mary Sandberg, said that Robinson hasn't always had a particularly healthy life. Still, she remains healthy enough to live by herself in the Farmington home she and her husband built 66 years ago."She lives alone and takes care of herself completely," said Sandberg. "She walks a mile or so every day."

Another former Farmington resident said she is still a spunky lady, "You can tell by the light in her eyes."

Friday, Robinson celebrated her 100th birthday with a gathering of family, friends and neighbors at her home and later had birthday cake, complete with 100 candles, at a nearby church.

Robinson was born in Provo and has lived in Utah all her life. She married Harold Henry Robinson on April 6, 1910. They were married for 77 years, until Harold's death.

Sandberg said her mother grew up in a world very different from the modern one. Early in their marriage, the Robinsons faced a daylong journey from Farmington to Provo to visit her family. Sandberg said the trip around the Point of the Mountain is etched deeply in her mother's memory.

Robinson's life centers on her family, said Sandberg. Many of that family traveled from around the country to celebrate with the matriarch. Robinson has seven children, 20 grandchildren, and about 50 great-grandchildren.

"We got lost in (counting) the great-greats," said Sandberg.