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Waldo Lake a Sacred Place

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In 1996, the Charlton Fire burned 10,400 acres north and northeast of Waldo Lake. ... This measurement is made by lowering a black and white disk into the water and ... – PowerPoint PPT presentation

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Title: Waldo Lake a Sacred Place


1
Waldo Lake a Sacred Place
  • Waldo Lake is one of the purest lakes in the
    world.
  • On a clear day, visibility reaches as far as 100
    feet!

2
Waldo Lake The Basics
  • Waldo Lake is the second largest lake in the
    Oregon Cascades. 
  • At an elevation of 5414 feet, Waldo forms the
    headwaters of the wild and scenic North Fork of
    the Middle Fork of the Willamette River. 

3
Waldo Lake The Basics
  • Where is it?
  • One hour from Eugene
  • The water chemistry of the lake has been compared
    to that of distilled water

4
Waldo Lake History
  • Archaeological sites containing scatters of
    ancient stone tools and artifacts indicate that
    Native Americans inhabited the area thousands of
    years before white settlers arrived.

5
Waldo Lake History
  • It is thought that Waldo Lake was discovered by
    Charlie Tufti, a Molala Indian
  • Waldo Lake was later renamed for Judge John
    Breckenridge Waldo.

6
Waldo Lake History
  • Judge Waldo helped map The Cascade Range Forest
    Reserve, established by President Grover
    Cleveland on September 28, 1893.

7
Can We Drain the Lake?
  • The Klovdahl Dam headgate and tunnel structure
    was built in approximately 1914 the structure
    was built to provide power and irrigation.
    However, it was never used, and has had to be
    repaired for leaks four times. If the tunnel were
    to open, it could lower the level of Waldo Lake
    over 25 feet.

8
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9
Waldo Lake Access
  • Construction of the 12 mile Waldo access road
    from Highway 58 began in 1964
  • There are three campground with 205 developed
    sites.

10
Waldo Lake Burn
  • In 1996, the Charlton Fire burned 10,400 acres
    north and northeast of Waldo Lake. Most of the
    area is in designated wilderness

11
NASA Ariel Burn Photo
12
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13
Why is the water so clear?
  • High water transparency is due to a low amount of
    suspended particles and free floating microscopic
    plants (phytoplankton) and animals (zooplankton).
    As sunlight penetrates the water, there is a less
    light with increasing depth due to scattering and
    absorption. This effect varies for different
    wavelengths of light. Since red and green
    wavelengths are more readily absorbed, scattering
    of light occurs primarily in the blue portion of
    the spectrum resulting in the distinctive cobalt
    blue color.

14
How to measure clarity
  • Secchi disk measurements are a common method of
    measuring the clarity of lakes. This measurement
    is made by lowering a black and white disk into
    the water and recording the depth below the
    surface when the disk can no longer be seen.
    Secchi disk measurements in Waldo Lake have
    frequently measured in the 66 to 100 feet range

15
How has this Sacred Place been managed?
  • Even though Waldo Lake remains one of the purest
    lakes in the world, degradation threatens its
    outstanding water quality.  The concentration of
    nutrients before human activity were at
    phenomenally low levels.  For the last several
    years, scientists have sounded the alarm that the
    lake is rapidly changing.

16
Decreasing clarity
  • campground facilities and toilets, motorboats,
    horses, fire retardant, and heavy recreational
    use around the lake, have contributed to an
    increase in the amount of pollutants in Waldo
    Lake.

17
The Big Questions?
  • How do we manage the area in a way that preserves
    its status a sacred place?
  • How do we balance the interest of different
    groups of people.
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