Sledders Interfere with Plane Landing

This link has the story.  I have had a similar occurrence up at Little Bear Lake in the summer.  The airstrip is between the lake and the camp-ground.  It is very common to have people (including very small children) wandering across the air-strip.  However, a planned initial low pass allows you to check how obstructed it may be, as well as warning people in the immediate area of what your intentions are.