Environment | Page 75

Standard map of Carver County, Minnesota. St. Paul : Minnesota Map Publishing Co., 1913

Map of Carver County, 1913. Map by the Minnesota Map Publishing Company.

Cleansers wash off the soybean oil and fuel oil, but also remove the ducks' natural oil which keeps them buoyant in water.

Cleansers wash off the soybean oil and fuel oil, but also remove the ducks' natural oil which keeps them buoyant in water. A few ducks got away from their rescuers after being cleaned, and drowned quickly after reaching the water. The ducks must be kept in captivity until summer, when they will molt and develop new feathers.

Image from the Hastings Gazette Weekly, April 4, 1963, p. 2. Digitized with permission from the Hastings Star Gazette.

Volunteers Answer "Bird" Call

Image from the Hastings Gazette Weekly, April 11, 1963, page 3. Digitized with permission from the Hastings Star Gazette.

Mississippi River Oil Spill, 1962–1963

In 1962 and 1963, industrial accidents spilled 3.5 million gallons of oil into the Mississippi and Minnesota Rivers. The oil covered the Mississippi River from St. Paul to Lake Pepin, creating an ecological disaster and a demand to control water pollution.

Power plant and dam on the Mississippi River, Coon Rapids

Coon Rapids Dam, 1946.

Dam, Coon Rapids.

Coon Rapids Dam, 1920.

Interior view showing machine number one ready for operation at the Coon Rapids Dam power plant.

Coon Rapids Dam Machinery, 1914.

Construction of the power plant at the north end of the Coon Rapids Dam.

Construction of the power plant at the north end of the Coon Rapids Dam, 1914.

Coon Rapids Hydroelectric Dam

Between 1913 and 1914 the Coon Rapids hydroelectric dam was constructed with the intent to provide power to Anoka County. The dam was shut down in 1966 after becoming too expensive to operate. It later became part of Minnesota’s environmental control program.

Sandy Lake Dam near McGregor, Aitkin County.

Sandy Lake dam in the mid-20th century

Gale Family Library