Here's a question to follow up on some discussion we had during Kyle's recent visit to Portland. Jim suggested that it would be useful to map large, coherent chunks of failed material (when they are clearly distinguishable) within the landslide boundaries. These would be mapped as bits of the parent lithology (e.g., West Crater flow or whatnot). The advantage of this approach is that it retains some of the information about rocktypes involved in landsliding that is surrendered when landslides are simply mapped as "Qls." My question is, how can/should we distinguish on the map between failed material and bits of in situ material that poke out within a landslide complex?