July 15: traffic jam

We had a chat with these sisters, aged 14 & 18, while we were stopped at a massive traffic jam / grid lock / traffic stoppage. We were on a bus traveling between Lijang and Shrangli-la, trying to get to Tiger Leaping Gorge.
As of now, we don't know the cause of this, but some German travelers decided to hike through it all and said that it was 'basic stupidity'!