BNC trails are open; playground, buildings, & restrooms closed. See guidelines.
By 1903, the date of this close-up map, the first buildings of what was then the city-run Boston Insane Hospital had been built. Notice that this map shows the brook on the site as slightly more straight than in the previous map; comparison to other maps and atlases of the time show this depiction to be more accurate. Map reproduction courtesy U.S. Geological Survey.