Muddy Branch originates in the City of Gaithersburg and, like many of the tributaries of the mid-Potomac Basin in Montgomery County, has been influenced by development that occurred early in the County's history along major transportation corridors such as Route 355 and the railroad. The developed areas with the highest levels of imperviousness are located in the headwaters of the watershed, and development densities decrease steadily in a downstream direction. Not surprisingly, stream conditions improve in a downstream direction as well.  Click for More Info

The map below does show boundaries of the Muddy Branch Watershed, and the adjacent ones of Watts Branch, Seneca Creek and Rock Creek.  Click on the FEATURES tab of the map to select the specific watershed you are interested in.  The map also have several points of interest you can select and find more information about.