There are many reasons for why most victims do not report gender based violence. One of them is that they are afraid of their offender finding out that they reported their crime and now the offender might come back to harm them, in a much worse way than before. Another reason is that the victim might be ashamed of publically calling attention to the fact that they became victimized for gender based violence. They may feel a sense of shame that comes with admitting to such acts that happened to them. Lastly, they may not come forward due to their painful experience. They might not want to relive through that horrible pain by bringing it up in public and for the police, etc.
It's clear through the passage that there are no paved roads or cars to get the miners from place to place. They had to carry all of their gear and supplies through dangerous trails by foot, only being able to travel a certain amount each day.