A few more helpful hints:

1.) Don't eat the marmots. This is harder to avoid than it might seem, but I can assure you that they do NOT taste like chicken. Plus, they carry bubonic plague.

2.) Yak yogurt is by far the tastiest meal you can have there- it's very similar to goat or sheep's milk products. The alcoholic horse milk (kumiss) is not too bad but not too great either.

3.) Bring a polaroid camera- many of the people we met were thrilled to have a photo of themselves and their children.

4.) Also- I found that small travel-sized containers of sunscreen and lotion were great presents for the women I met- the sun and wind can be very harsh, and they don't often have the time or means to buy those kinds of things. The kids liked crayons and bandanas. It may seem burdensome or odd to carry extra weight around, especially if you are biking- but these are some of the most hospitable and friendly people on the planet and would give you the shirt off their back if you needed it- so some small tokens of goodwill go a very long way.

Oh- and I have some photos, if you're interested. Once my own computer comes back from the repair shop, I could post some for you!