Topographic Maps

ERIS’ topographical maps were first published in the late 1800s and now cover the entire United States. Topographic maps show natural features such as wooded areas, lakes, rivers, wetlands, and topographic relief. Cities and towns are depicted along with individual structures in rural areas and man-made structures such as roads, railroad tracks, dams and bridges. Certain land disturbance activities such as quarries, mines and ditches, which may have environmental research importance are often shown.

• ERIS provides digital copies of current and historical 7.5- and 15-minute USGS topographic maps for the entire United States.
• All topographic maps are in color and include a scale bar and the year created/updated.