31. Debris flows , mainly from the Mount Meager massif, have filled the valley to a depth of.32. This was the only debris flow in Mount Adams'recorded history, but there are five known lahars. 33. While the debris flows Tuesday and yesterday spooked local residents and hikers, no injuries were reported. 34. A thick debris flow deposit from December 1999 is exposed by river incision during late-stage floods. 35. There have been many recent debris flows which have flowed down into the Meager Creek drainage. 36. In order to prevent debris flows reaching property and people, a debris basin may be constructed. 37. On August 6, 2010, a large debris flow started in the vicinity of the Capricorn Mountain. 38. In addition to these debris flows , flash floods carrying extremely high sediment loads were very dangerous. 39. As a result of their high sediment concentrations and mobility, debris flows can be very destructive. 40. Debris flows and fans carry material outward as far as 200 km from the broken-rim sectors.
