trying to get over the rocks---at my age and my lung condition at this altitude. the experience was GREAT!!!!! this gentleman gave EVERY effort to get us to COMPLETE my tour. We probably completed 75% of the tour and because of that he didn't just take us back, he gave us history of the area AND made us feel like we did something GREAT. we did accomplish the things that i HAD to do before i got older. THIS COMPANY AND GUIDE WERE UTTERLY FANTASTIC. wish we lived closer, we would try it again. Thanks doug.