
The Triadelphia Reservoir dominates the northeastern corner of this landscape, created by the Brighton Dam on the Patuxent River. This 1950 survey captures a region of Montgomery County defined by crossroads hamlets and emerging institutional hubs before the heavy suburbanization of the late 20th century. Major intersections like Olney and Ashton are clearly mapped, alongside historic centers such as Brookeville and Sandy Spring.
29 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
2 editions found
24 maps found

1908 Seneca
Montgomery County, MD

1944 Seneca
Montgomery County, MD

1944 Seneca
Montgomery County, MD

1945 Sandy Spring
Montgomery County, MD

1945 Washington East
Montgomery County, MD

1950 Sandy Spring
Montgomery County, MD

1951 Washington East
Montgomery County, MD

1952 Seneca
Montgomery County, MD

1956 Washington East
Montgomery County, MD

1957 Washington East
Montgomery County, MD

1968 Seneca
Montgomery County, MD

1981 Sandy Spring
Montgomery County, MD

1988 Sandy Spring
Montgomery County, MD

1994 Seneca
Montgomery County, MD
2011 Sandy Spring
Montgomery County, MD
2011 Seneca
Montgomery County, MD
2014 Sandy Spring
Montgomery County, MD
2014 Seneca
Montgomery County, MD
2016 Sandy Spring
Montgomery County, MD
2016 Seneca
Montgomery County, MD
2019 Sandy Spring
Montgomery County, MD
2019 Seneca
Montgomery County, MD

2023 Sandy Spring
Montgomery County, MD

2023 Seneca
Montgomery County, MD