My most important FM in Quito was at a site about 5,000 feet above the city below and had many, many fold-backs...
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The road was carved out of the mountainside and had some gravel mixed with volcanic soil.
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To do maintenance, I had to drive up in the evening with plenty of food and water and warm clothing (it got well below freezing, even at just a few kilometers south of the Equator) and then wait for midnight to work on the transmitter and link.
There were few places for two cars to pass each other, so backing up or backing down could be a problem as the site was shared with the TV station from missionary broadcaster HCJB.
Occasionally, an idiot with his girlfriend would start the drive up "the hill" and discover how frightening it could be. Sometimes the froze, and required assistance to get to a place they could turn around.
Asking "what part of private road don't you understand?" did not seem to generate any remorse. Some brains don't work as well at about 15,000 feet above sea level.