ANASTASIA KIERST was born in Wyoming and spent most of her childhood and college years in the Rocky Mountains. She is an explorer at heart. Though she has traveled the world, Yellowstone is still and will always be her favorite place. She married her husband, Jeff Martin, on the rim of the Grand Canyon of the Yellowstone. Ms. Kierst currently teaches Art at a public elementary school in Dallas, Texas.CHRISTOPHER KIERST was born in New Jersey. On a college geology field trip to Wyoming, he fell in love with the land and with the geology that shaped it.Mr. Kierst recently retired from working as a geologist with the state of Utah. He and his wife, Cheryl, currently divide their time between… relaxing in the marine calcium carbonate geology of the Bahamas and puttering around in the mostly sedimentary geology of Utah.