Refer to the map below to identify regions within the Severn River where we have conducted monitoring surveys since 2008. Monitoring includes ground truthing, post-planting monitoring, and patent tong surveys. To see a more detailed map of each region, select the region name within the map. Site names shown on the below map in italics represent sites where only a single survey was conducted, and are not included in regional maps. Years in parentheses indicate the year in which each survey took place.