Hildegard Hendrickson, 79, disappeared while mushroom hunting near the Minnow Creek trailhead in the Wenatchee National Forest near Leavenworth, Washington. The last confirmed sighting was June 8, 2013; her vehicle was found unlocked at the trailhead. A retired Seattle University professor and long‑time member of the Puget Sound Mycological Society, friends described her as a careful, experienced forager who had practiced the hobby for nearly four decades.

Chelan County search and rescue mounted an extensive response: dozens of ground searchers, multiple K9 teams and more than 5,200 man‑hours combed the Minnow Creek Trail and Basalt Peak area, but no trace of her was found and the active search was suspended after more than a week. Reports note difficult terrain, a knee issue that may have limited how far she would go, and a suspicious person seen in the area whose connection to the disappearance is unknown. In 2015 she was legally declared dead, but the circumstances of what happened remain unresolved.

If anyone was in the Minnow Creek or Basalt Peak area around June 8, 2013, or remembers a suspicious person near the trailhead that day, please share information with investigators.