Why is road of Spiti Valley treacherous ?- (I tried to research this on internet, but I couldn’t find it!)

Its treacherous to my understanding because of the following reasons-

-The soil of the land is loose – Condition of the road deteriorates quickly on entering Lahaul. Soil is loose and keeps shifting, ensuring that freshly laid tarmac doesn’t even last for a year.
-Stones and rocks keep falling from the top of the mountain
-It can’t be maintained  (Though BRO has tried their level best and have broaden it)

Overall, the Spiti Valley Road is one of the toughest adventure roads left on this planet. The road includes gravel and asphalt sections. It’s terrible narrow, pretty steep and very dangerous, and probably more challenging than the famous Leh-Manali Highway. There are no houses, no people, no vehicles to give way to, or anything to remind of the world we have left behind. A narrow road barely good enough to drive reminds that they are still connected with the world, and also gives them access to the terrain that almost feels uncharted. Due its unique location and the climb in elevation over thousands of feet, and passing through remote areas, it is important when driving in these conditions to be prepared.

After rain, even a single rainfall, conditions of the road can be challenging. Adverse weather conditions can prompt closure of the road. Thunderstorm activity can quickly change unpaved roads to four-wheel-drive condition or make them impassable.  Sections of the road are narrow enough to barely let a jeep pass, and any error in judgment would only mean tumbling down the valley and into the fast flowing river. Yet, there are hardly any accidents, thanks to little traffic and the drivers who are used to these roads.

While we reached the spot, which had this board mentioning that we were on the world’s treacherous road, we got down of the car, looked around, looked at the road we were standing and looked up at the mountain, we looked at thee flowing river deep down and looked at each other.
The traffic on the road was scarce, there was mud in the air and though all we did was pose with this board, yet deep in our hearts, we were grateful that we were safely able to reach here and prayed for the further safe travel. This road which connects the remote part of Spiti with Kinnaur, the only way to get eatables and other needs, the same road was fulfilling our hunger for adventure, exploration and our love for travel.

Have a look on the cuts of the giant mountains, the curves and the rigidness, the toughness, the sharpness, the willingness to have a cut and give way and the vastness.

BRO is always on work here. Any natural problem and they stand to resolve it. That time, mining was going on and so we halted to few minutes and observed the critical way of the work to manage these mountains.