Mt. Saraswati: Driving to one of the World’s Highest Observatories

Mt. Saraswati is a high mountain peak at an elevation of 4,532m (14,868ft) above sea level, located in the Ladakh Union Territory of northern India. Home to a world-class astronomical facility, the road to the summit offers a journey literally "among the clouds."

Mt. Saraswati

Where is Mt. Saraswati located?

Situated in the Hanle Valley of southeastern Ladakh, Mt. Saraswati (also known as Digpa-ratsa Ri) rises above the high-altitude cold desert of the Himalayas. The peak is strategically chosen for its extreme isolation and pristine atmospheric conditions.

How long is the road to Mt. Saraswati?

The road to the summit is remarkably completely paved, which is rare for such extreme altitudes in the Himalayas.

  • Starting Point: The ascent begins near the village of Khuldo.
  • Distance: The road is 4.5 km (2.79 miles) long.
  • Elevation Gain: Over this short distance, the track climbs 233 meters.
  • Average Gradient: The incline is a steady 5.17%, making it a smooth but breathless climb.

Why is Mt. Saraswati famous?

The summit hosts the Indian Astronomical Observatory (IAO), operated by the Indian Institute of Astrophysics. Established in 2001 (with significant upgrades in 2011), it is one of the highest sites for optical, infrared, and gamma-ray telescopes in the world. The site was selected because Hanle experiences cloudless skies for most of the year and has incredibly low atmospheric water vapor, perfect for deep-space observation.

What is it like to drive to the summit?

While the road is well-maintained, driving at over 4,500 meters presents unique challenges:

  • Altitude Sickness: Visitors must be properly acclimatized to the Ladakh region before attempting the drive, as oxygen levels are significantly lower than at sea level.
  • Vehicle Performance: Engines may experience a noticeable loss of power due to the thin air.
  • Logistics: Access to the observatory area often requires special permits (Inner Line Permits) due to its proximity to the sensitive border areas.

Pic: Shubham Daniel

 

 

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