GIS数据查看器 is a comprehensive application we have developed recently using the latest in ArcGIS Server technology. This interactive mapping application gives you direct access to the most current GIS data the county has. It enables you to find information detailing a variety of features in Will County. There are more than 70 map layers available including various base map, 农业, 土地使用, 水文, and public safety layers as well as aerial imagery. For advanced users, there are many spatial analysis tools included for use in the application.