Posted on October 7, 2019 by Diana BlakneyMaster Naturalist Tour On October 4, 2019, Kathleen led a group of 11 to parts of the Marys River watershed. City of Corvallis and Holly from the Council also attended (as did I – to help on the part of the tour featuring Shiver River . Fish ladder on the South Fork of Rock Creek. Rock Creek reservoir Overflow area of the reservoir. The uptake apparatus on the reservoir is in the background. It draws water to supply the City of Corvallis with drinking water. Lobster mushroom unearthed on Shiver River property during the tour. Good eating, so I’m told. Apparently this is not a good one to eat!