Based on early illustration of the town, what is one reason why Francis Lowell’s partner might have chosen this area to build a factory town of the Lowell?

As an AI language model, I do not have access to the specific illustration referred to in the question. However, based on historical information, one reason Francis Lowell's partner (Nathan Appleton) might have chosen the area to build a factory town was due to its proximity to the Merrimack River, which provided water power for the mills. Additionally, the area had a growing population and access to transportation routes.