This atlas offers Internet access for display and query of information about the Commonwealth of Massachusetts. The atlas allows users to choose a geographic area within the state, layers of data for display, turn layers on and off, zoom or pan the map, and download the maps and associated numeric datasets. With the 1990 Census aging and widely available, the atlas focuses on alternative sources of demographic, business, and environmental information. In the future, we will add additional datasets and images of selected historical maps of the state, its various regions, and cities. The Map Layer Selection page provides a list of available map layers with check boxes.
Users can check the boxes to select layers for inclusion in their customized map browser.
We suggest that not more than 15 layers be chosen at any one time. Using the Map Browser From within the Map Browser the view extent can be changed, layers turned on and off, and data queried and downloaded. You can click and drag on the bar separating these frames to change their sizes if necessary. Layers, Map View and Selection Controls, and Information and Settings Layers. The radio buttons and check boxes along the right side of the map control which layers of geographic data can be selected and displayed.