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Sophia Spooner's dad always finished what he started. That's one thing that kept Sophia going during her 2,659-mile hike.

Sophia's dad, Ray, passed away from ALS (amyotrophic lateral sclerosis) — a neuromuscular disease that causes weakness and eventual paralysis of all voluntary muscles, including those used for breathing and swallowing — on Aug. 8, 2016.

10 months later, Sophia started hiking the Pacific Crest Trail, which spans from the Mexico/California border all the way up to the Washington/Canada border, to raise money for the Muscular Dystrophy Association (MDA) and its ALS Care Centers, which provide specialized care for people like Ray.

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