Edge of ravine

Across the street from our house, there is a small sliver of land, about 20 feet wide, then a steep drop-off into a ravine.

A family is leveling the land to build on it!  We found out they were in debt to the bank, which took the house they had in another community.  They bought this piece of land at a low price with money the wife got from her husband who is living in the United States.  We're curious how they are going to build on this long, narrow strip; and we're praying for no landslides!