Name any two pilgrimage sites located on mountains.

Two prominent pilgrimage sites located on mountains are Kedarnath and Vaishno Devi. Kedarnath, in Uttarakhand, lies in the Himalayas at an altitude of 3,583 meters and is dedicated to Lord Shiva. It is one of the twelve Jyotirlingas and part of the Char Dham Yatra. Vaishno Devi, in Jammu and Kashmir, is situated at an altitude of about 1,500 meters in the Trikuta Hills. Devotees trek to the holy cave to worship Goddess Vaishno Devi. Both sites require physical endurance due to their mountainous terrain and attract millions of visitors annually for spiritual fulfillment amidst scenic surroundings.