VA Pyramid on CSX line: What Did I See?

Last weekend, I took an Amtrak train from DC to Richmond. About halfway there (maybe just south of Fredericksburg), I saw a pyramid on what appeared to be parkland (parking lot and bike trails nearby). The pyramid was about fifteen feet tall. made of granite and concrete.

Can anybody tell me what this was and how it came to be there?

Mods: Please move this to General Questions, which is where I thought I had posted it.

Googling pyramid fredericksberg suggests this as an answer: http://www.simplyfredericksburg.com/offpath/pyramid.shtml

Could it have been this :

Meade’s Pyramid
Just off Lee Drive (in the Fredericksburg-Spotsylvania National Military Park) and across the railroad tracks lies a 23-foot high granite pyramid. Though it is not officially recorded in history records, the park claims that the pyramid dates back to 1897. During that time, the Confederate Memorial Literary Society wanted to place markers along the railroad, marking Civil War sites. The railroad claimed that these markers would look too much like advertising. A better marker then was chosen, a 17-ton granite pyramid. Today the pyramid (officially known as Meade’s Pyramid after General George Meade) is the only one of it’s kind. Visitors to the Fredericksburg-Spotsylvania National Military Park can see the monument by driving to the end of Lee Drive (Prospect Hill).

er, fredericksburg

Meade’s Pyramid it is, thanks!