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New to The National Map Corps? Head over here for an overview of the project.

Mapping Challenges will be released periodically and are a way to focus volunteers on areas that need editing. The challenge is to edit the red points if you are Standard Editor and to Peer Review the green points within the challenge area released. Make sure to look for missing points too! Advanced Editors can edit any of the points within the challenge area. 

Volunteers who contribute in the Challenge area will be recognized on this page and also tweeted on The National Map Twitter account. Contribute to The National Map by participating in Mapping Challenges!

Mapping Challenge Updates - Courthouses are Turning Yellow!

4/19/18 -------------------------------------------------------------

A huge shout-out to all of our volunteers who have helped with the Pilot Study! There's still some blank spaces on the map where courthouses need collecting. Check out our Courthouse Pilot Project Guide for more on how to populate courthouses!

Mapping Challenge Updates - More Courthouses are Coming In!

3/28/18 -------------------------------------------------------------

It's always exciting to see more points being added to our courthouse status maps. Just look at West Virginia and South Carolina... A huge shout out to our volunteers for helping us collect this data!


Mapping Challenge Updates - Courthouses Continue!

3/20/18 -------------------------------------------------------------

Our courthouse mapping challenge is still ongoing! There's a few counties in Indiana that need courthouses, along with Arkansas, Kentucky, Virginia, West Virginia, Tennessee, Alabama, Georgia, and South Carolina!

If you're new to courthouses, make sure to check out the courthouse section of our user guide for an overview of this pilot project and editing guidelines. As for authoritative sources, http://www.courtreference.com/ is a good starting point along with NCSC's listing of State Court Websites.

As always, Happy Mapping!


Mapping Challenge Updates - Georgia On My Mind / Don't Forget About Courthouses

2/27/18 -------------------------------------------------------------

Courthouse Mapping Challenge: National Status Map

Here is an updated status map showing the courthouse points collected to-date. Collection of courthouses has slowed, but there are still a handful of states that need to be done. Help us get the whole country collected by filling in those blank areas.

If you're new to this, make sure to check out the courthouse section of our user guide for an overview of this pilot project and editing guidelines.

Don't forget that Peer Reviewers and Advanced Editors can also check points with a green border.

New Courthouse Challenge: Georgia

Are you editing Post Offices in Georgia for the mapping challenge? Why not add courthouses as you work your way through the state? Before participating in courthouse collection, make sure you've read the courthouse section of the user guide.

(Non-Courthouse) Challenge Update: Georgia Post Offices

Wow! The GA post office challenge is coming along nicely. As usual our volunteers have risen to the challenge. As a reminder, there are some issues with the post office data in Georgia, so please make sure you've read the additional info below before participating in this challenge.


 Please be aware of and look for these things while editing:

a) Missing Post Office points

We know there are many missing points (possibly as many as 200!), including some areas that don't have any points at all, as circled in the status map below. If you are editing in GA it may be worthwhile to work systematically by city, or zip code, using the USPS Locator tool.


b) Duplicate Post Office points

Make sure you zoom all the way in, and look for any duplicate post office points. If you do find a duplicate, make sure follow these guidelines when deciding which point to delete.


c) Points on the road rather than the correct building

Because this post office data was originally geocoded, the positional accuracy is variable, and points may be located on a road near the correct building. Make sure you are finding the correct building and moving the point onto the building, which is true for editing in all situations, but is a more common issue with post office points. You may find the recent article on aerial photo interpretation for post offices in the November 2017 newsletter helpful.


As always, make sure you use the USPS Locator tool as your primary source when editing post offices and review the structures table for what we do and don't collect. In addition, you may want to check out some of our past newsletter articles highlighting post office editing, including the January 2017 newsletter (pages 4-5), and the March 2017 newsletter (pages 2-4; 7). Don't forget, the Q&A page is a terrific resource as well. You can search for questions pertaining to a specific topic using the search bar at the top:


EDITING TIP: Don't forget that you can filter points in the editor to just show the structure type you are editing.


SCREENSHOT of TNMCorps' Web Editor


Below is an updated static status map; and don't forget about the interactive challenge map too, which gives a real-time view of the challenge, and allows you to quickly jump to points in the editor.





Mapping Challenge Updates

2/15/18 -------------------------------------------------------------

Georgia Post Offices - "Georgia On My Mind"

A reminder that we have a new mapping challenge out! This time it's post offices in Georgia! This map challenge can be a bit of a challenge (ha! pun intended!) because Georgia is missing several post offices, there are duplicate existing points, and several existing points also need to be moved from the road to the correct building. Nothing that our volunteers can't conquer!

Georgia Post Offices - New Interactive Web Map

To help our volunteers with the new map challenge, we've also developed a new Interactive Challenge Map! Click here (or on the image below) to explore Georgia Post Offices!

Courthouse Mapping Challenge: National Status Map

Our Courthouse Pilot Project continues with several states in the east yet to have their county courthouses mapped!


Mapping Challenge Updates - Georgia On My Mind

2/7/18 -------------------------------------------------------------

Courthouse Mapping Challenge: National Status Map

Here is an updated status map showing the courthouse points collected to-date. Volunteers have collected an impressive number of points in just a few short months. There is still some work to be done though, so if you're interested in editing courthouses, help us finish up the remaining few states. Don't forget that Peer Reviewers and Advanced Editors can also check points with a green border.


New Courthouse Challenge: Georgia

Since courthouse editing has slowed slightly in the last week, we are going to run another state challenge. Georgia is looking lonely without any courthouse points, so that will be our new courthouse mapping challenge.


New (Non-Courthouse) Challenge: Georgia Post Offices

If you're not collecting courthouses, we have a new non-courthouse challenge you may be interested in: Georgia post offices. This challenge will be unique and perhaps a little more challenging than usual. We know there are issues with the data, so volunteers will have to be extra diligent while editing.

Please be aware of and look for these things while editing:


a) Missing Post Office points

We know there are many missing points (possibly as many as 200!), including some areas that don't have any points at all, as circled in the status map below. If you are editing in GA it may be worthwhile to work systematically by city, or zip code, using the USPS Locator tool.



b) Duplicate Post Office points

Make sure you zoom all the way in, and look for any duplicate post office points. If you do find a duplicate, make sure follow these guidelines when deciding which point to delete.


c) Points on the road rather than the correct building

Because this post office data was originally geocoded, the positional accuracy is variable, and points may be located on a road near the correct building. Make sure you are finding the correct building and moving the point onto the building, which is true for editing in all situations, but is a more common issue with post office points. You may find the recent article on aerial photo interpretation for post offices in the November 2017 newsletter helpful.


As always, make sure you use the USPS Locator tool as your primary source when editing post offices and review the structures table for what we do and don't collect. In addition, you may want to check out some of our past newsletter articles highlighting post office editing, including the January 2017 newsletter (pages 4-5), and the March 2017 newsletter (pages 2-4; 7). Don't forget, the Q&A page is a terrific resource as well. You can search for questions pertaining to a specific topic using the search bar at the top:


EDITING TIP: Don't forget that you can filter points in the editor to just show the structure type you are editing.





Mapping Challenge Updates

1/31/18 -------------------------------------------------------------

Courthouses are coming along smoothly!! It's always fun comparing these maps side by side. (wink) It really puts a visual on progress made, all of which we couldn't do without the help of our dedicated volunteers! Keep up the good work!


Mapping Challenge Updates

1/25/18 -------------------------------------------------------------

Here's an update of how many courthouses have been collected to date! Don't forget that all these green points are eligible for Peer Review!


Mapping Challenge Updates

1/17/18 -------------------------------------------------------------

Having fun in the snow yet?!


Courthouse Mapping Challenge: National Status Map

As we've said before - WOWZERS! Our editors have certainly been busy with only a few states remaining! Remember that Peer Reviewers and Advanced Editors can also check points with a green border:

Courthouse Challenge Update: Connecticut

Our volunteers never cease to amaze us! Since our last post (1/10/18), most of the counties in Connecticut have now had courthouses collected. But they still need Peer Reviewed or Advanced Edited! Here is an updated status map:

As always, Happy Mapping!


Mapping Challenge Updates

1/10/18 -------------------------------------------------------------

Happy New Year TNMCorps volunteers!


Courthouse Mapping Challenge: National Status Map

Wow! Since our last post TNMCorps volunteers have been busy adding and editing courthouse points. Thank you to everyone who is working on courthouses! Check out the updated national status map below to see what has been done so far:

Courthouse Challenge Update: Massachusetts

Since we posted the Massachusetts courthouse challenge on 12/21, it looks like most courthouses have been added. If any of our peer reviewers or advanced editors are interested in making sure the state is finished, here is an updated status map:


New Courthouse Challenge: Connecticut

For our next courthouse mapping challenge let's focus on Massachusetts' neighbor, Connecticut. As of this post (1/10), no courthouses have been collected in Connecticut.


Happy Mapping!


 


Looking for previous updates? Click here to check out our Past Mapping Challenges.


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