Adirondack Forum  
Rules Membership Donations and Online Store Adkhighpeaks Foundation ADKhighpeaks Forums ADKhighpeaks Wiki Disclaimer

Go Back   Adirondack Forum > Outdoors Related Discussion > GPS Navigation, Maps, and Orienteering
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

 
 
Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
Old 04-18-2008, 10:37 AM   #1
colden46
Member
 
colden46's Avatar
 
Join Date: Oct 2006
Posts: 1,056
Mapping public vs. private land

Hi all, for the folks that didn't see the "Topozone replacement" thread from the Mapping & GPS forum, I put together a little web site that allows you to search for USGS place names and then view USGS topo maps of the results in a Google Maps interface. As the name of the thread suggested, it was basically to re-create TopoZone.com since that is now a pay site.

Well, after getting the basic maps working I thought it would be cool if I could add an overlay to the map showing public vs. private land. I have a couple park-wide maps that show this, but since they cover the whole park everything is tiny on the map. On the website you can see in much better detail. I assume I'm not the only one looking for this type of information, so I thought I'd post a note here. Private land is shaded darker on the map, whereas public land appears normal. You can check it out at:

http://adirondack-park.net/topo/

A couple caveats: first and foremost, I got the data from the NYS GIS website, and it's around 10 years old (despite the fact that on the site it says the data is updated annually). This means that a lot of major purchases that have happened since then still show up as private land. The one that jumped out at me the most was Little Tupper Lake. The APA has some updated data on a CD, but according to their website it's still only from 2001. I'm waiting to hear back from someone there about getting more up-to-date stuff.

Second, the data considers water as a separate category, neither public nor private. That's why lakes aren't shaded, even if they're surrounded by private land. As you can also see, the data doesn't line up perfectly with the underlying maps, so if you zoom way in you can see a bit of difference along the lakeshores. The lesson here is, it's not perfect -- and if you use this and end up getting arrested for trespassing, don't blame me

Third, it's really difficult to see the shading if you switch to the satellite view.

Let me know if you have any problems. Thanks!
colden46 is offline   Reply With Quote
 


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:23 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

DISCLAIMER: Use of these forums, and information found herein, is at your own risk. Use of this site by members and non-members alike is only granted by the adkhighpeak.com administration provided the terms and conditions found in the FULL DISCLAIMER have been read. Continued use of this site implies that you have read, understood and agree to the terms and conditions of this site. Any questions can be directed to the Administrator of this site.