Just looked at the images of your 75 and your nano, Urk. Wow. The rocks in your 2nd 75 look like the grey shale from the Hudson shore, and is that granite with quartz veins? I'm real curious to know where you collected them. I hike all over the valley with my son, and many of the parks are on the Hudson. I love the Hudson. You mention a nature preserve in Milton. Is that the little pond in Cluett-Schantz park?
Aquaverde, I love the Ashokan, too! I used to hike there years ago, when I lived in Woodstock. Come to think of it, there was always TONS of driftwood along the shore, especially in the drought years.