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2. Pennsylvania Spatial Data Access - Wikipedia

   en.wikipedia.org/wiki/Pennsylvania_Spatial_Data...

   The purpose of Pennsylvania Spatial Data Access (PASDA) is to serve as a comprehensive geospatial data digital library by providing free, universal access to geospatial data and information by, for, and about the Commonwealth of Pennsylvania. PASDA has served for almost 20 years as the Commonwealth's node on the National Spatial Data ...

3. Geographic information system - Wikipedia

   en.wikipedia.org/wiki/Geographic_Information_System

   A geographic information system ( GIS) consists of integrated computer hardware and software that store, manage, analyze, edit, output, and visualize geographic data. [1] [2] Much of this often happens within a spatial database, however, this is not essential to meet the definition of a GIS. [1] In a broader sense, one may consider such a ...

4. Geographical feature - Wikipedia

   en.wikipedia.org/wiki/Geographical_feature

   Geographical feature. A feature (also called an object or entity ), in the context of geography and geographic information science, is a discrete phenomenon that exists at a location in the space and scale of relevance to geography; that is, at or near the surface of Earth. [1] : 62 It is an item of geographic information, and may be ...

5. Google Earth - Wikipedia

   en.wikipedia.org/wiki/Google_Earth

   Google Earth is a computer program that renders a 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles. Users can explore the globe by entering addresses and ...

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Topographic map - Wikipedia

   en.wikipedia.org/wiki/Topographic_map

   In modern mapping, a topographic map or topographic sheet is a type of map characterized by large- scale detail and quantitative representation of relief features, usually using contour lines (connecting points of equal elevation), but historically using a variety of methods. Traditional definitions require a topographic map to show both ...