User:Jenna Bloch/sandbox

User:Bjnihart/sandbox (FULL Article Here)

Castle Rock Lake is a man-made drainage lake located in central Wisconsin, in Adams County and Juneau County. It has an inflow from Petenwell Lake, Yellow River, Big Roche a Cri., and Klien Creek. It has a surface area of 16,640 acres (67.3 km2) and reaches 35 feet (11 m) deep.The lake's depth varies from 8 to 20 feet (2.4-6.1 M) in most places, with area in the old river beds reaching as deep as 35 feet (10.7 M).

Castle Rock Lake is the fourth largest lake in Wisconsin, it covers sixteen thousand acres, and has approximately seventy miles of shoreline. Castle Rock Lake is home to a large variety of fish, birds, and many other organisms. The large body of water attracts many people to the area as well, it provides a great space for recreational hobbies such as: bird watching, boating, fishing, and recreational water sports.

Contents

 * 1History
 * 2Physical Aspects
 * 2.1Geography & Geology
 * 2.2Hydrology
 * 2.3Water Chemistry and Quality
 * 3Wild Life
 * 3.1Flora
 * 3.2Fauna
 * 4Environmental Concerns
 * 4.1Bacteria
 * 4.2Invasive Species
 * 4.3Pollution
 * 5Human Uses
 * 6Figures and Tables
 * 7References
 * 8External links

History[edit]
Construction of the Castle Rock Dam was started in 1947 and completed 4 years later in 1951. The dam is 38 feet (11.6 M) high, 18,700 feet (5,700 M) long at is crest, with a maximum water capacity of 175,000 acre feet (215,859,000 m³). A hydropower project of the Wisconsin River Power Company (WRPCO) in tandem with the related Petenwell Dam and Reservoir.

Geography & Geology[edit]
Castle Rock Lake is located in Central Wisconsin between Adams County and Juneau County, at the coordinates 43.9258° the surrounding area of the lake consists of mostly flood plains. The elevation of the lake itself is at a mean sea level of 882 feet (268.834 m). The parent material in the area is mixed sandy alluvium, the A Horizon consists of loamy sand, and the B Horizon consists of sand.

Hydrology[edit]
Minimum water temperature (°C): 1.9°C

Maximum water temperature (°C): 28.2°C

Daily total undepleted solar radiation (cal cm-2 day-1) by season:

Spring: 408.70- 430.21 cal cm-2 day-1

Summer: ≥494.75 cal cm-2 day-1

Autumn: < 344.17 cal cm-2 day-1

Winter: < 344.17 cal cm-2 day-1

Average percentage sunlight reflected:

Summer: Between 1-10%*

Winter: Between 1-10%*

Secchi disk depth (m):1m

Water Chemistry and Quality[edit]
The equilibrium concentration of dissolved oxygen in the surface waters at varying temperature are:

4°C: 12.3mg/L (7.69*10^-4 mol/L)

10°C: 11.5 mg/L (7.19*10^-4mol/L)

20°C: 7.1mg/L (4.44*10^-4mol/L)

25°C: 5.2mg/L (3.25*10^-4mol/L)

The average pH of Castle Rock Lake is 7.2

The total dissolved organic carbon is 17 mg L^-1

The chlorophyll a levels are (μg L-1): 6 μg L-1

Flora[edit]
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Fauna[edit]
The structure created from the river beds makes Castle Rock a productive and consistent fishing lake. Species such as Walleye, White bass, and Crappie are the most abundant, but many other species like Northern pike, Large mouth bass, Small mouth bass, Bluegills, Sunfish, and Perch are caught as well. Muskellunge (Musky), Sturgeon, and Catfish are also known to be present but in smaller numbers than other noted species.

Bacteria[edit]
Castle Rock Lake has encountered several environmental concerns including, blue-green algae, invasive species, and shoreline development. In the summer of 2009 Petenwell Lake and Castle Rock Lake both had obvious signs of blue-green algae growth. The algae floats on the surface giving the water a "pea green" color and a foul smell.

Invasive Species[edit]
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Human Uses[edit]
On the Juneau County side (west side), with the exception of Buckhorn State Park and Yellow River State Wildlife area, the shoreline is more developed. There has been an influx of resort-type developments with small private lakes and deeded access to Castle Rock Lake in the last few years. The majority of shoreline is undeveloped making the lake "less populated" and ideal for boating and skiing.

Figures and Tables[edit]
Castle Rock Lake temperature vs depth in summer Temperature vs depth charts on Castle Rock Lake in different seasons Temperature vs depth charts on Castle Rock Lake in different seasons Temperature vs depth charts on Castle Rock Lake in different seasons