The IndianaMap NHD Swipe Map illustrates the difference between Indiana’s original USGS 1:24,000 High-Resolution National Hydrography Data Set (NHD), and Indiana’s new USGS 1:2,400 Local-Resolution NHD.
Here is a link to open the App – http://arcg.is/1HHmzQa
Click on the Vertical line and slide it left-right to expose Indiana’s new Local-Resolution streams and ditches.**
Click on the Bookmarks 1 – 9 to zoom to US House Congressional Districts. Click on #10 to go back to statewide view. Enter an address in the search box in the upper right corner and click on the magnifier to zoom to an area of interest.
**NOTE: Indiana’s Local-resolution NHD mapping project is still in progress, so not all areas in Indiana have been mapped at local resolution. All mapping will be completed by the end of Q3 2016.