A wall of rock fell on boaters in a Brazilian lake, killing 6 – NPR

A wall of rock fell on boaters in a Brazilian lake, killing 6  NPRBrazil rock formation collapse kills at least 2, injures 15, caught on video  Fox NewsAt least 6 people are dead, 20 missing after a boulder crashes on 3 boats in Brazil  CNNGiant rock dislodges in Brazil canyon, killing at least 6, injuring several others  New York Post 6 dead, 20 missing after cliff collapses on tourist boats in Brazil  ABC News