How to: Aerial map with topo lines

[Joseph]

In case anyone finds it useful, here is how you can display topographic lines on top of an aerial.

The following link starts Gmap4 (I am the developer) and if you zoom in until the scale in the lower left says 500 ft then you will see topo lines on the Google aerial for anywhere in the U.S.

http://www.mappingsupport.com/p/gmap4.php?ll=38.640824,-83.571710&z=5&t=h,Topography_lines&rest=http://services.nationalmap.gov/ArcGIS/rest/services/USGSImageryTopoLarge/MapServer?name=Topography_lines&layers=34,35&transparent=true

To start zooming in to your area of interest, try Menu ==> Search to get close and then zoom/pan.  To manually zoom, use your mouse wheel or the sliding control near the upper left corner of the map.

To turn the topo lines on/off, click the button in the upper right corner of the map then scroll down to the Overlay section and click "topography_lines".

The topo line data comes from a GIS (Geographical Information Service) server run by the feds. That GIS data displays the topo lines on top of any basemap.

The Gmap4 homepage has a FAQ, examples, quick start info (in the Help file) and more to quickly get you up to speed.

Gmap4 default map: http://www.mappingsupport.com/p/gmap4.php (does not include GIS topo line overlay)

Gmap4 homepage: http://www.mappingsupport.com/p/gmap4.html

Joseph, the Gmap4 guy
Redmond, WA

[CoyoteCowboy]

thanks for posting!

[skidynastar33]

 Awesome!

[Eli346]

Just tried it and it works great! Possibilities abound.

[raydog]

Tag for later use. Thanks for posting

[Boss .300 winmag]

Tagging

[Joseph]

Thanks for the kind words.

Joseph, the Gmap4 guy

[Carl]

Thanks for posting the tip.  Tagging

[pd]

Tag.  Good work, Joseph.

[cvandervort]

Major cool points!
Who said you can't buy friends 

Thanks a ton!!!

[Dadx6]

Love it! 

[Damnimissed]

Finally, someone has done it! Now if someone could show me how to tag this...

[Bigluke1981]

Very cool, thank you. 

[Boss .300 winmag]

This thread would be a good one to sticky so it can be easily accessed, any moderators want to do it. 

[mikelonsford]

Cool!  Thanks!