Leaving Villavieja along the Tatacoa Rd the Mirador El Cuzco, which comes after about 7 km, is a useful milestone because right about here there is a cluster of small restaurants and hotels before the tarmac ends and desolate Tatacoa Desert really takes form. Once off the tarmac, you will encounter a restaurant to two a few kilometers off and then a lot of nothing until Baraya about 23 km further on.
I completed about half of this route and then returned because Jess had decided to have a cold drink and hot relax back by the mirador. She had taken a spill on a wet, mossy section of the road coming in from Villavieja and was well due a relax, having to ultimately ride the 277 km back to Bogotá with a badly bent handlebar. Anyway, after a very smooth introductory few kilometers, I found the road to be quite challenging as I proceeded but I was a very inexperienced off-roader back then. Please let me know about your experience and impressions.