alsatian, thank you for some great info. I do realize that this trip will require a lot of intense planning, i am just trying to get a foundation to build on and you have certainly set that for me. i have found the colorado state website a little difficult to navigate around but have been reading the regs and units that are possibilities. with the trip a ways out (2-3 years) i am already excited but am trying to make it the best i can by planning early. I hope to make it an annual trip if possible.