Saw a few massive debris piles at the bottom of various slide paths on Timpanogos. 1) At the bottom of an hour-glass shaped chute on the south-western end of Timp, a slide ran far and wide down into the mountain bike trails in the area. Observed the path from Highway 189. 2) A large south facing path ran into the scrub oak, leaving a very impressive debris pile. Again, observed this from the car while driving on 189. 3) Another large slide could be seen from the valley on the SW face of Timp, running to Dry Canyon. 4) East side of Elk Point ran, leaving another big pileup not far above the Sundance Nordic trails. Saw the pile while xc skiing. The staff at the yurt said they'd never seen that path run so big. I suspect all of these ran naturally during the upside down snow last week. These were big slides that ran from way up high and covered the full length of the paths. From some of the other obs and reports, it's pretty clear that Timpanogos was raining avalanches during the event.