This past weekend my brother flew in from Iowa to join me and our brother-in-law on a hiking trip that we hoped would see us to the top of five Colorado 14ers. Mt. Democrat, Mt. Lincoln, and Mt. Bross, a close triangle of peaks in the Mosquito Range, were our goals on Friday. Mt. Harvard and Mt. Columbia, two peaks in the Sawatch Range, were our destinations on Saturday. An ambitious two-day hiking trip to be sure, but my brother competes in triathalons, so I didn’t think his lack of acclimatization to the altitude would be an issue. My brother-in-law is a regular runner and biker, and he lives at higher altitude, so I knew he would have no problems. And despite my athletic background, I figured somebody had to be the weak link, so I rounded out the trio of climbers set to tackle the 14ers.