Mohammed bin Abdulla Al Thani at an altitude of 6,962 m. On 28 August 2012, he climbed Mt. Elbrus the tallest peak in Europe at an altitude of 5,642m in Russia. Al Thani has climbed Mount Kilimanjaro in Tanzania at an altitude of 5,963m twice, on 25 February 2010 and 12 November 2011, respectively. On 25 December 2012, he climbed Vinson Massif, the highest mountain in Antarctica at an altitude of 4,897 m. On 11 October 2012, he summited Mt. Kosciuszko in Australia at an altitude of 2,228 m. Al Thani has also climbed Mont Blanc on 10 September 2011 at an altitude of 4810
Heidi Zimmer 1978. In 1996, Zimmer was diagnosed with Usher's syndrome. She hopes to climb all the Seven Summits, the highest mountains of each of the seven continents. Heidi Zimmer Heidi Zimmer is an American deaf mountaineer who has accomplished several notable firsts in mountaineering. She was born deaf, and became the first deaf woman in history to reach the top of Mt. McKinley on June 13, 1991. At the top, she unfolded a banner reading "DEAF WOMAN, A PARADE THROUGH THE DECADES". On August 15th, 1992, Zimmer became the first deaf person to summit Mt. Elbrus. On September 22nd, 1994, Zimmer