Jeff,
Beautiful pics. The GF and I spent a few days on the Navajo Res last year. Enjoyed the area very much. Been to a few Salish pow wows but nothing as big as the gathering of nations. Very cool. We'll be back out in Southern Utah and Northern AZ this June. One week in the Escalante area and one week in the Sedona area. No bikes unfortunately...

Cheers,
Nick