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The timber rattlesnake may be found in those Illinois counties that border the Mississippi River and that have forested river bluffs. It also may be found in the southern one-third of Illinois.

The timber rattlesnake is one of 36 species in the genus Crotalus. This genus can be distinguished from Sistrurus by the small scales atop the head, rather than nine large scales found on Sistrurus.

Oct 1, 2018 · This dataset represents a species known range extent for Crotalus horridus (Timber Rattlesnake). These range maps are created by attributing sub-watershed polygons with information …

Jul 10, 2024 · Newsweek has mapped out where you might come across a timber rattlesnake and spoken to an expert all about the snakes and what to do if you come across one.

Jun 1, 2025 · Discover the complete rattlesnake range USA guide! From Arizona deserts to Florida swamps, learn where 36+ venomous species live across 48 states.

On Lake Erie Islands, southeastern New England, and north-central North Carolina, populations of timber rattlesnake are patchy and isolated. Timber rattlesnakes are absent from southwestern …

However, despite this large range, most Timber Rattlesnakes are found in increasingly isolated populations, especially towards the western and northern fringes of their range.

The range of the timber rattlesnake extends from southern New Hampshire south through the Appalachian Mountains to northern Florida and west to southeastern Texas and southeastern …

Its range extends from New Hampshire along the Appalachian Mountains to northern Florida and, on its western edge, from southeastern Minnesota to southeastern Texas; the snake’s range once …