Please note that the content of this book mainly consists of articles available from Wikipedia or other free online sources. Heidi Zimmer is an American deaf mountaineer who has achieved several remarkable first ascents in climbing. She was born deaf and on June 13, 1991, became the first deaf woman in history to reach the summit of Mt. McKinley. At the top, she unfurled a banner reading "Deaf Woman, a Parade Through the Decades." On August 15, 1992, Zimmer became the first deaf person to summit Mt. Elbrus. On September 22, 1994, Zimmer became the first deaf woman to climb Mt. Kilimanjaro. She has also won a bronze medal at the Deaflympics. In 1978, she graduated from Gallaudet University. In 1996, Zimmer was diagnosed with Usher syndrome.