It turns out that people all across the country are getting into tree mapping and Azavea, the Callowhill-based GIS mapping firm, hopes to make their open source software, OpenTreeMap, the standard ...

OpenTreeMap is helping cities figure out where all the trees are, so they can better judge the environmental and public health impacts of a well-planted city. Here’s a hint: The impacts are huge.

Last fall nearly 20 Calvin biology students went sleuthing on campus, meter sticks, notebooks and GPS devices in hand. The goal? To document every tree of at least five inches in diameter on the west ...

NCX uses satellite imagery to generate high-resolution images of forests in the United States. The start-up's business is connecting landowners with trees on their property, and companies looking to ...