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Tuesday, November 1, 2016 - 14:22
You can easily manage large collections of imagery and remotely sensed data using ArcGIS.
Thursday, October 20, 2016 - 20:00

On Tuesday, November 8, 2016, America will choose their next president. For most of people this means a lot of emotions but for GeoGeeks it also means a lot of election maps. Over the years we’ve seen a lot of bad and boring electoral cartography. Below you’ll find a couple of examples showing that election maps can actually be pretty cool.

Have a cool map that was not featured here? Share it in comments!

First electoral map from 1883


Thursday, October 20, 2016 - 16:25

By Jenn DeRose, Green Dining Alliance

America wastes a lot of food. It has been estimated that 40 percent of food in this country gets tossed every year. If you’re wondering how to interpret that number, imagine taking nearly half of every meal you eat and dumping it directly in the garbage. Now imagine 318 million of your neighbors doing exactly the same thing.

Food garbageWasting that much food translated into 37 million tons of garbage in 2013, garbage that could’ve had a different fate as nourishment for hungry people. One in seven Americans are food insecure, which means they do not know where their next meal will come from, if they get a next meal.

Thursday, October 20, 2016 - 16:03
Esri Story Map shows the locations for early voting in Cobb County as well as the wait times for each location.
Thursday, October 20, 2016 - 15:04
Esri published an interactive map depicting the campaign stops and routes Hillary Clinton and Donald Trump took.


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Census Data

SF1 Data in File Geodatabase Format:

County-Level Variables, version 9.3
County-Level Variables, version 10.0

Census Tract-Level Variables, version 9.3
Census Tract-Level Variables, version 10.0

Block Group-Level Variables, version 9.3
Block Group-Level Variables, version 10.0

The Data Dictionary can be found in Chapter 6 of http://www.census.gov/prod/cen2010/doc/sf1.pdf.

US Census Geography (Shapefiles):
Feature data is included in the US file geodatabases above, so these are in case you need a quick download of the geography only.

US County Shapefile
US Census Tract Shapefile
US Block Group Shapefile

Site Blog

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Summer Institute on Geospatial Technology

Wednesday, May 21, 2014 - 09:45

This summer, August 4th through the 22nd, the Washington College Geographic Information Systems Lab in Chestertown, Maryland is conducting a Summer Institute of Geospatial Technology aimed at adult professionals looking to hone their skills.

arcpy.da.Editor (Trials_and_Tribulations)

Friday, May 9, 2014 - 10:15

I was recently asked to create a Python Script Tool to facilitate an editing workflow.  The basic idea for the tool is that the user selects a feature from one feature class and the attributes of this feature are used to update the attribute values for a selected feature in a second feature class.  I created a test environment on my machine and got the basic tool working.  Once I tested it a few times, I understood why the client wanted it.  It really was useful and saved some steps in the editing process. 

Missed the Memo?

Monday, May 5, 2014 - 12:45

This is a rather eclectic post, but I thought I'd let you know about a couple of issues that I had lately that cost me a good bit of time.

1.  Once the 64-bit geoprocessing patch is installed, personal geodatabases can no longer be read by arcpy Python scripts.



GIS Memes


Convert KML to SHP while Preserving their Attributes!

Ever received a KML from a colleague or friend, open it up in Google Earth, click some features to see their attributes, and realize that you want to do more with it than just display it on Google Earth?? So then you request it in shapefile format to do further geoprocessing on it in another GIS. Sadly, they respond to you with a question of their own: What is GIS??"... Ouch. 

10.1 - Legend - Current Extent...

So, as Tundra and others that will be joining soon know, I like tools that make things simple for my end users.  In 9.3 through 10.0 we had a tool made by the BLM Oregon State Office called Legend by Extent.  THis tool was a simple check box on a toolbar to limit your legend items to only those showing in the current extent.  It had its quirks, but worked well, and was dynamic.


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by Dr. Radut.