Jamaica Plain and surrounding neighborhoods in southwestern Boston have the highest tree canopies in the city. Generally speaking, the tree canopy is the part of the city shaded by trees. The city recently released a tree canopy assessment for 2014-2019. This year's worth of analysis is from high-quality, high resolution LiDAR (Light Detection and Ranging) images captured during airplane flyovers of Boston, according to a press release. Boston's Parks and Recreation Department commissioned the report to understand which areas have the most potential for increased tree cover, and analyze how the city's canopy cover has changed.