Local boundaries refer to the physical or political boundaries of a particular area. The term 'local boundaries' can be used to describe the borders of a city, town, county, state, or country. In the context of a crossword puzzle, the answer to the clue 'Local Boundaries' is ELS, which stands for 'Estate, Local, and State.' This term is used to describe the three levels of government in the United States: the federal government, state governments, and local governments.