2024 Map of Colchester

About this map

Colchester and the neighboring community of Tennessee occupy a landscape defined by the branching tributaries of the East Fork La Moine River. This McDonough County region is characterized by a dense concentration of historical burial grounds, including the Sacred Heart Cem, Widow Moore Cem, and Mount Auburn Cem, which suggest a long-established rural population. The terrain transitions from the open plateaus where townships are grid-mapped to the deeply etched valleys of Troublesome Creek and Cedar Creek. Recreation and conservation areas are anchored by Argyle Lake and the smaller Irish Lake, providing a clear view of how local water resources have been managed alongside the residential expansion of the western Illinois prairie.