Cactus to Clouds, Palm Springs CA.  11,000ft EG, 22 miles.  (first 8K of EG is over 11 miles)

Rim-2-Rim-2-Rim, Grand Canyon, AZ: 14,000EG, 53 miles- total tail kicker, 20 - 24 hours of hiking

Mt Whitney, Lone Pine, CA: 6500EG, 22 miles - hard due to length and altitude of 14,500.