Geographic Information Systems
GEOGRAPHIC INFORMATION SYSTEMS
What is Geographic Information Systems (GIS)?The AHPP uses GIS and historic maps to find locations, record them and to do spatial analysis.
Simply put, a GIS combines layers of information about a place to give you a better understanding of that place. What layers of information you combine depends on your purpose. The AHPP uses GIS and historic maps to find locations, record them and to do spatial analysis.
The AHPP is working to build a library of historic maps. These maps are scanned and geo-referenced. Having the map scanned not only provides a good back-up but also allows their use in the AHPP's GIS. When studying a given region, the AHPP has the ability to add any relevant historic maps and overlay them with any significant features in the agency's database. The AHPP also has the ability to load these maps into a Global Positioning System (GPS).
1827 Little Rock to Memphis Road (4178 KB)
GLO Overlay near Batesville (303 KB)
The AHPP's GPS works with a Pocket PC Trimble handheld GeoXm units and mapping software. The GPS has the capability to store all the historic information for the area being studied. The information can be reference information or it can be the actual feature being sought, such as a historic roadbed or building. Once the location is found, the GPS records the location and information is entered about the feature. This information is synchronized with the database in the AHPP office.
Arkansas Post Hut Sites (7886 KB)
Village Creek Area Map (2118 KB)
Section 106 Review
The AHPP is working to enhance the National Register and Survey Database and integration with the Arkansas Archaeological Survey database. The agency is currently improving the locational accuracy of the National Register and Survey Database and filling missing or incorrect location information. With the NR and Survey Database and Archaeological Survey databases in its GIS, the AHPP can see all the known cultural resources in a given area. This will make the Section 106 Review process quicker and more accurate. The AHPP will also gain the ability to do analysis, such as determining the view shed of a cell tower.