21 December 2016 at 0122 GMT the GEOS International Emergency Response Coordination Center (IERCC) received a 911/SOS alert from an InReach device in the Grand Canyon National Park, Arizona.   IERCC personnel contacted local emergency services and informed them of the activation. SAR personnel responded to the location and assisted a group of hikers who wandered off the trail and became lost. The individuals were escorted by a SAR ground team to the trail and continued their hike. No injuries were reported with this incident.