Washington Post: “Joy Ryan, 92, had never seen a mountain. So her grandson decided to take her to every site that has “national park” in its name…“Grandma Joy is a bit of a superhero,” said Brad, a D.C.-based veterinarian. “She is not your typical 92-year-old.” Their trip last August to Gates of the Arctic National Park in Alaska was one of many journeys Ryan has embarked on with his paternal grandmother, Joy Ryan — whom he calls “Grandma Joy.” They are on a shared mission to visit 63 U.S. National Parks together. Since they started the effort in 2015, they’ve made it to 62…”