As part of a series of educational river tours and hikes, AsRA’s staff led members of the community on a hike of Owen and Copperas Ponds last Wednesday.

Bathymetry is the measure of depth of water in ocean, seas, and lakes. Maps of these depths are referred to as bathymetric maps. They are important tools for navigation, fishing, and scientific studies. So how are these maps made?

AsRA's River Steward, Liz Kamb, is raising awareness about environmentally and economically harmful invasive species among residents of and visitors to the Ausable watershed. You can help her conduct visual surveys of the Ausable River by looking out for aquatic invasive species throughout the summer. Read on to learn about five key anatomical features that will help you know the characteristics to watch out for when identifying invasive plants. With many more eyes on the lookout, concerned citizens can make a big difference in the identification and eradication of new aquatic invasive plant populations.