Leaving at 4 am on a four day combined business and pleasure trip. Off to see some alumni (dress pants, polo shirts, toiletries and razor, as well as an iPad to show the school and camp slideshows). However, I'll spend two nights out in the backcountry so I also have: rock shoes, sleeping bag, bivy bag, foam pad, hats, gloves and assorted warm clothes, as well as the single heaviest item in the pack ... the voluminous Bob Horan's BOULDERING COLORADO..