Settlement processes were often convoluted because of differences among land policies of the several colonies claiming the land, specifically Pennsylvania and Virginia. But, some of the land encompassing what is now the Coraopolis Heights, Thorn Run valley, and Narrows Run valley were claimed through the process of 'Tomahawk Improvements', a non-specific and oftentimes contested method. Generally, the Pennsylvania Land Office apportioned land to owners through grants. On the southern banks of the Ohio River, political disputes among settlers clouded the disposition of lands. In the face of this turmoil, Native American settlements of the south bank of the Ohio River typically relocated to more populous areas of the north bank in the current locales of Sewickley and Ambridge. In some cases, the land was already occupied by squatters who were to be forced off the land. During the French and Indian War, the Iroquois, who controlled the land for hunting grounds through right of conquest, ceded large parcels of southwestern Pennsylvania lands through treaty or abandonment to settlers. The initial settlement of Moon Township was a direct result of the westward expansion of English settlers and traders who arrived in the Ohio Valley in the early to mid-18th century. ( August 2023) ( Learn how and when to remove this template message) Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources in this section. This section needs additional citations for verification.

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