The Appalachian Trail is a 2,193-mile footpath that crosses 14 states from Georgia to Maine.
Grubb began hiking the trail in 2012, one week at a time. He planned ahead for weather and logistics.
Grubb had to deal with injuries, bears, snakes, and COVID-19. He also had to balance his work and family life.
Grubb loved the views, the wildlife, and the seasons. He also met many friendly and helpful people on the trail.
Grubb reached the northern terminus of the trail, Mount Katahdin, on his 56th birthday. He celebrated with his wife and friends.