Gandhamardan Hills, located along the border of Balangir and Bargarh districts in Odisha, is a sacred and ecologically rich hill range renowned for its ancient temples, dense forests, medicinal plants, and mythological significance linked to the Ramayana, where it is believed Hanuman carried the Sanjeevani-bearing mountain. The hills are home to the famous Harishankar Temple on the southern slope and Nrusinghanath Temple on the northern slope, connected by a scenic trekking route through forests and waterfalls. There are no fixed entry timings for the hills, but temple visits are generally allowed from 6:00 AM to 9:00 PM, while trekking and sightseeing are best done during daylight hours. The best time to visit Gandhamardan Hills is October to March, when the climate is pleasant and greenery is at its best. Easily accessible by road from Balangir, Bargarh, and Sambalpur, Gandhamardan Hills is a prime destination for spiritual tourism, eco-tourism, trekking, and nature exploration in western Odisha.