The Genesee Valley was well-settled by the Seneca Indian Nation. During these times, the heavily forested region around the Genesee Valley was simply called “Big Tree,” hence the naming of the “Treaty of Big Tree” which was soon to come.  As European settlers began to lay claim to the land, it was necessary to negotiate land rights with the Seneca Nation. Talks held on the property of the Wadsworth family culminated in The Treaty of Big Tree in 1797 that created land reservations for the Seneca while granting ownership of the land to the Holland Land Company for 3 ½ million acres for development to non-natives. More specifically, the Treaty also refers to a particularly large oak tree along the west bank of the Genesee River that stood on the now Wadsworth family property that hosted the Treaty negotiations. After having been rooted in that original location of witness for many years, the tree fell in 1857 as a result of a great flood. Its last remaining section is housed in an outdoor shelter on the grounds of the Livingston County Museum.