This document discusses how mapping technology is being used to fight female genital mutilation (FGM) in rural Tanzania. FGM involves cutting female genitalia and can have severe health consequences. During "cutting seasons", activists and safe houses have trouble locating girls at risk of FGM. The organization Hope for Girls and Women trains local mappers to add locations like villages and safe houses to offline map apps to help activists and police quickly find and protect girls. Since starting this mapping program, over 3,000 girls have been able to avoid FGM and the death rate from the practice has reduced by 75%. The mapping efforts have now expanded globally to help combat FGM in other countries as well.