Yeah, the Rock Creek tree fall is pretty small by comparison with others, and is surrounded by forest so it might not show on gogglemaps. It is amazing where avalanches sometimes occur. For instance, about 25 hears ago a major slide hit Aspendell, west of Bishop, destroying one home. It was ruled a "100-year" slide. (four new homes have since been built in the same spot.)
When I worked at Pine Creek Mine, our surface garage building was completely flattened by an avalanche from a chute that had been regarded as safe. Another "100-year" slide...Yah just never know.