There are twenty-three languages in the Salishan language family. They occupy the Pacific Northwest, with all but two of them being concentrated together in a single large area. It is clear that these languages are related, but it's difficult to track the development of each because their histories are so interwoven. The different speech communities have interacted a great deal, making it nearly impossible to decipher the influences of varying dialects and languages on one another. However, there are several trends and patterns that can be historically traced to generalize the development of the Salishan languages over the years.