Answer:
That statement is true
Explanation:
Vigilantes refers to a individual or a group that make an effort to maintain law/on order without official affiliation with the government.
Mining towns tend to be really far from the civilization and almost not taken care of by the government. This make a lot of criminals operated in this area and terrorize the locals.
In order to handle this, citizens formed groups called vigilantes and created a proper plan/system to protect themselves fro the criminals.