Complex sentence: The elevation in metres, which is taken from a local sign, is in agreement with SRTM data, stating that the pass is 17582 feet (5359 meters) above sea level, and claims that it is the world's second highest motorable pass.
Split into simpler sentences: The elevation in metres, which is taken from a local sign, is in agreement with SRTM data. That the pass is 17582 feet (5359 meters) above sea level, and claims that it is the world's second highest motorable pass.