Black Diamond Mine Preserve

Here's a gem if you're looking for lush green rolling hills that extend further than the eyes can see, free roaming cows, eagles and vultures preying on agile field gophers, snakes, and best of all abandon mines. Then check out Black Diamond Preserve just north of Mt. Diablo in the eastbay. I wonder if this place stays green all year round, I'd have to check back in the future.