I'd heard about this group, but forgot about it until a few days ago, when taking a different route home, I noticed two nearby streets had dedicated bicycle lanes, and my memory was sparked. I think this group has more significance than ever, as more and more people are going green, and walking and biking more. The conservancy even has a pledge you can sign to "Burn Calories, Not Carbon!" I like that this group was ahead of its time, and isn't just jumping on the green bandwagon, or "greenwashing" its claims.
The conservancy has a strong political arm, defending the federal railbanking statute in Congress and the courts as an essential tool to preserve unused rail corridors. Read about how you can get involved.