I too participated in the mechanical turk exercise. Having grown up around and hiked around the area and having watched this with much interest I wondered this too. Fortunately (or unfortunately depending on how you look at it ) the areas that the turk exercise seemed to focus on was from about Mono Lake north. Mammoth is about 30 miles to the south of Mono Lake and wasn't really a prime area of interest during the search. I hope they find some remains although it's pretty unlikely at this point, especially given the severity of the impact. A storm is predicted within the next few days as well so it may very well be that we don't get closure on this until the spring.