Anamosa, Iowa is located in the eastern part of the state and has a humid continental climate with hot summers and cold winters. The area receives an average of 36 inches of rain per year, and the Maquoketa River runs through the town. The river provides opportunities for fishing, kayaking, and canoeing. Wapsipinicon State Park is located nearby and offers hiking trails, fishing, and camping. The park also has a lake for swimming and boating. Another outdoor recreation opportunity in Anamosa is the Grant Wood Trail, a 16-mile paved trail for biking, walking, and running. In terms of hydrology constituents, the city's wastewater treatment plant uses a biological nutrient removal process to remove nitrogen and phosphorous from the wastewater to protect the local water sources.