Each pass was a challenge. Each pass had snow on both the south and north sides. More snow was on the less sunny north side.

For Mather Pass I followed two other hikers who were climbing it. While climbing up the south side I was finally able to get to switchbacks that were relatively clear (on left side of picture below). As I approached the top the hiker in front of me leaned over and barfed on the trail. Eww! It was the altitude. We each react to it differently. Luckily I never had a problem that way.