Beaver Dam Creek Reservoir http://www.dgif.virginia.gov/fishing/waterbodies/display.asp?id=17
also use the site this site to look by county and find spots. Beaver d**n was closed to boat traffic a while back so it is main shore fished and kyak fished. rocky and has plenty of cover.
there is a dam down stream that can be fished, also if you are googling it there is a park nearby that has a small pond that can be fished, friends told me about it and further on the old route 7 bridge and across new route 7 there are trails. you can wade fish. Same friends told me fountain head is good too, but heavy pressure.
I have also fished some of the ponds in south riding, off the main road oppsite loudin cnty parkway at the intx with 50. the ponds back there hold sunfish and largemouth.
If you feel like traveling, you have lake brittle in gainsville/warrenton area. Travel out to the country go to W Thompson wildlife management area and fish lake thompson. or Lake Frederick, (highly recommend) You also have the shenendoah off 50 and in front Royal and not to mention the upper Potomac. I lived out in winchester and worked in chantilly so traveling 30 to 60 minutes to get to lakes was norm if not fishing the rivers.