Too Much Water but Enough Shale
July 21, 2019
A week ago Sunday David and I walked downriver along the Vermilion. We’d had very little rain in Oberlin for maybe two weeks and expected the river to be low. We had forgotten that, even though the locations are only eight miles apart, weather at Schoepfle Garden—where we approach the river—and weather in Oberlin don’t always match. Alas, they must have had rain we didn’t. The river was too high, too fast, too wide, and the bedrock shale probably too slippery to walk across. I prefer the other side because it is where I always find lovely outbreaks of Leptothrix discophora films as well as interesting shale formations. On the less-interesting side we saw a little film, but nothing spectacular. Casting about for something that would warrant the rather tortuous trek along the river, I became fascinated by the shale at my feet where we usually cross over. Even there, the rock fractures along lines that look human made. I’d love to know why it does that.