Union County, Illinois offers a diverse range of nature trails, each designed to enhance outdoor activities and geographical analysis for GIS professionals. This dataset comprises 65 recorded pathways including trails like the CCC Heritage Trail and the Ozark Hills Trail with its unpaved surface, ideal for mapping natural terrain and planning recreational routes. The dataset details features such as surface types—ranging from gravel, dirt, to ground—and accessibility options for bicyclists and horseback riders, evident in trails like the Sheppard Point Trail and White Pine Trail. Notably, the Nature Trail and Lake Trail are characterized by their dirt surfaces, reinforcing their suitability for foot traffic only, providing a quiet retreat into nature.