Two Railfan Afternoons at Derwood (2007)

As best as I can tell, this video was taken on two afternoons in May 2007. Lots of action on the CSX Metropolitan Sub then. Here's the play by play;
An eastbound train of covered hoppers is seen slowing at Washington Grove MD behind an ES40DC/SD40-2/CW40-8. Jumping ahead, the train is pictured at a stop signal at Derwood to meet Q139.
The next footage is from a day or two later as eastbound P030-23 is seen from the Montgomery County Liquors spur.
Eastbound P884-23 is seen during it's deadhead move back to WDC. P873-23 then makes an appearance, followed by P891-23.
D782-23 from Brunswick pulls up to a stop signal at Derwood behind a pair of GP40-2s to meet P029-23 pulled by four engines. D782 then pulls to continue their trip to Benning Yard in DC with scrap gons for Joe Smith.
Next, Q415-23 behind an ES40DC and C40-8 crest the hill and enter the Derwood Dip. I let the tape roll for this one.
The final train is Q400-22, westbound with three engines and some fallen-flag rolling stock. Enjoy!