The NH Stone Wall Mapper project uses Lidar data to display small variations in ground elevation. A UNH project built this map to identify stone walls in the state.

This site can be “misused” (in a good way) to show lots of other topographic features. Here’s a “Lidar view” of the grounds of Loch Lyme Lodge, near Post Pond. The features are shaded as if the sun were shining from the northeast. (Update: 31 Dec: Thanks to the good folks at the NH Geological Survey, the link now goes directly to the desired view!)

But wait… there’s more! You can turn on and off various “layers” to see other kinds of information. To do this:

1. At the top-left, click the Layers Icon to display various layers
2. Check on or off the Hillshade box to “show or hide the trees”…
3. Click the More… icon to enable other features, such as the “Swipe Layers” that lets you compare two layers…

So much fun – play around!. Turn on/off layers, scroll to other parts of NH. If you find something interesting, send me a note and I’ll post it. Enjoy!