Katherine was finishing up her final year of Medical School at the University of Chicago. She had recently matched in Emergency Medicine at the University of Washington in Seattle. Residency started in June. Jeff was certain that Katherine was THE ONE, and he wasn't going to let her move West without a commitment and a ring on her finger. They headed off to Peru to do a 4 day hike on the Salkantay Trail to Machu Pichu. Jeff was a little impatient and had no intentions of waiting until Machu Pichu to propose. Day 1 of the hike, they ended the day by hiking up to Humantay Lake. Jeff convinced Katherine that setting his phone down with video rolling was the best way to get a selfie of the two of them. Somehow Katherine bought that. Ask Jeff for that video, and you can see the proposal yourself!