There’s no age limit for enjoying the outdoors, switching careers, or speaking out against injustice—and Betty Reid Soskin is living proof. As Travel + Leisure reports, the 96-year-old California resident is the nation’s oldest active national park ranger, a late-in-life vocation she embarked on just over a decade ago.

Soskin, who originally hails from Detroit, works at the Rosie the Riveter/World War II Home Front National Historical Park in Richmond, California. The national park preserves the history of the U.S. home front during World War II, including the businesses, innovations, and people that helped make victory possible. (Richmond was once home to more than 56 different war industries.)

Today, Soskin gives interpretive tours of the park. But long ago, she worked as a World War II file clerk for the all-black Boilermakers A-36. Soskin—the great-granddaughter of a freed slave—gained local prominence as an activist, and fame as a songwriter, during the Civil Rights Movement. But history ended up being just as important to Soskin as current political events when she served as a consultant with the National Park Service for the Rosie the Riveter Park in the early 2000s.

Soskin was the only person of color at the planning table, according to NPR. She ensured that the historic park didn’t erase memories of the segregation that had once existed at factories and shipyards, as doing so would also erase the history of the area’s African-American population.

Word of Soskin and her activist efforts spread, especially when she publicly denounced the 2013 federal funding crisis. In 2015 she was formally recognized by President Barack Obama, who gave her a silver coin with the presidential seal. Sadly, Soskin’s presidential coin was stolen in 2016 in a violent home invasion, but she returned to work three weeks after the attack, saying in a press conference that she “wanted to get back into routine life.”

Fans of Soskin can keep up with her via her blog, where she’s written about her life and job since 2003. You can also learn more about her, in her own words, in the video below.

[h/t Travel + Leisure]