Field assignment-Yosemite National Park.
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Field assignment-Yosemite National Park. Field assignment-Yosemite National Park. Presentation Transcript

  • Yosemite National Park “The Mist Trail” Danica Preciado Geology 3 CO-1 Field Assignment December 4 th , 2011
  • Content
    • Background and Method
    • Park Information
    • Seasonal Weather/Climate
    • Waterfall/River Geology
    • Tree Examples
    • Habitats
    • Rock Samples
    • References
  • Background and Research Methodology
    • In early August I visited “The Mist Trail” which is one of many trails of the Yosemite National Park.
    • Most of the photos used in this report were taken from this trip.
    • Map images used came from Google.
    • Vernal and Nevada Falls I provided along with some tree photos.
    • Animal pictures came from Internet.
    • Identification of rock came from Topinka(2002)
    • Identification of tree came from Browse Trees (n.d)
  • Site Location
    • Located in the central Sierra Nevada of California
    • Established: 10-1-1890
    • 761,268 acres
    • Coordinates 37° 44′ 42.73″ N, 119° 35′ 53.6″ W
    (“Tasev,” 2011, “Uhler,” 1995)
  • Park Information
    • Yosemite National Park was established on 01 October 1890.
    • It is the Nation's third oldest national park.
    • It is a show case spectacular geological features, such as the greatest concentration of granite domes and largest exposed granite monolith in the world.
    • Abraham Lincoln signed the grant of 1864 which was the first application of a park concept that originated in Yosemite.
    • Yosemite plays an important role in wildlife preservation and preserving biological diversity.
    • It’s a world heritage site that provides solitude and inspiration and serves as an outdoor classroom for environmental education.
    (“Uhler,” 1995)
  • Seasonal Weather/Climate
    • Summer
    • June-September
    • Usually warm to hot with occasional rain.
    • Yosemite Vally(4000ft/1200m) 87 o F(31 o C)/51 o F(10 o C)
    • Water comes from melted snow in high country.
    • Waterfalls reach peak flow during this time.
    • Most blooming of wildflowers occur.
    • Fall
    • October-November
    • Variable-Ranges from hot to cold, dry to rain or snow.
    • Yosemite Vally(4000ft/1200m) 54 o F(12 o C)/35 o F(2 o C)
    • Water levels are very low.
    • Waterfalls contain little or no water.
    • Doesn’t have a variety of fall colors.
    (“Yosemite,” 2011)
    • Winter
    • December-March
    • Snowy and cold, but sunny and chilly days may occur.
    • Yosemite Vally(4000ft/1200m) 53 o F(12 o C)/28 o F(-2 o C)
    • Water levels are low until it snows or rains.
    • Waterfalls begin to flow again.
    • Covered in white from snow.
    • Spring
    • April and May
    • Sunny and warm days with occasional winter storms.
    • Yosemite Vally(4000ft/1200m) 69 o F(21 o C)/39 o F(4 o C)
    • Waterfalls and small creeks are both flowing.
    • It may reach peak runoff in May.
    • No blooming-Except for California poppies.
    (“Yosemite,” 2011)
  • Temperatures and Precipitation
    • Month Maximum   Minimum Precipitation  
    • (°F / °C) (°F / °C) (inches / cm)
    • January 48/9 29/-2 6.5/16
    • February 52/11 30/-1 6.7/17
    • March 58/14 34/1 5.2/13
    • April 64/18 38/3 2.8/7.1
    • May 72/22 45/7 1.7/4.4
    • June 81/27 51/11 0.7/1.8
    • July 89/32 57/14 0.4/1.0
    • August 89/32 56/13 0.1/0.3
    • September 82/28 51/11 0.7/1.8
    • October 71/22 42/6 2.1/5.3
    • November 56/13 33/1 4.6/12
    • December 47/8 28/-2 5.5/14
    (“Yosemite,” 2011)
  • The Mist Trail
    • The Mist trail is the most popular trail in Yosemite.
    • Distance: over 10 miles
    • Elevation at trailhead:  4,000 feet
    • It got its name by the wind blowing the mist everywhere and getting hikers wet.
    • It has steeped granite steps that are some of the finest foot path engineering.
    • On this trail many sceneries can be seen such as Vernal and Nevada Falls, roaring streams of water courses, Emerald Pool, carved granite cliffs.
    • It is also considered one of the most dangerous trails because of the slick steps.
    (“French,” n.d, “Yosemite,” 2006)
  • Waterfalls
    • Yosemite is known for it’s amazing countless number of waterfalls and hiking locations, such as Bridalveil Fall, Lower Yosemite Fall, Cook’s Meadow Loop, Mirror Lake/Meadow, Valley Floor Loop, Four Mile Trail, Panorama Trail, Upper Yosemite trail, Vernal and Nevada Falls and Half Dome.
    • Spring is the best time to see the waterfalls.
    (“Yosemite,” 2011)
  • Vernal Falls
    • 317 FT
    • Flows all year, but peaks in May
    • Can be seen from Glacier Point
    • Elevation Gain: 1,000 feet (300 meters) to top of Vernal Fall
    • 3 Miles (4.8km) round-trip
    • 3 hours
    (“Yosemite,” 2006, “Yosemite,” 2011)
  • Nevada Falls
    • 594 FT
    • Flows all year with peak flow in late May
    • Can also be seen from Glacier Point
    • Elevation Gain: 1,900 feet (580 meters) to top of Nevada Fall
    • 5.4 miles (8.6km) round-trip
    • 5-6 hours
    (“Yosemite,” 2006, “Yosemite,” 2011)
  • Tree-Incense-Cedar
    • Scientific Name: Calocedrus decurrens
    • Family Name: Cupressaceae
    • Description: Small dark greenish leaves, bright cinnamon-red bark that has broken ridges
    • 40-50 ft, sometimes as tall as 70ft
    • 8-12ft in width
    (“Yosemite,” 2011)
  • Tree-Ponderosa Pine
    • Scientific Name: Pinus ponderosa var. ponderosa
    • Family Name: Pinaceae
    • Description: Very tall, Dark gray-green, olive or yellow green needles
    • In the wild it can grow 150’-230’
    • It has a 25’-30’ spread
    (“Yosemite,” 2011, “Browse,” n.d)
  • Habitats
    • Yosemite National Park is the home of many wildlife species.
    • It supports over 400 vertebrates such as fish, amphibians, reptiles, birds, and mammals.
    • Insects are found here as well, with two species not found anywhere else in the world.
    • While visiting the park, I didn’t have the chance to see any animals.
    • Some examples of animals that live in the park are mule deer, black bears, spotted owls, bobcats, mountain beavers and many more.
    • All deer in the park are mule deer; they tend to have more attacks on Humans than bears.
    • The owls may be heard in the park if u listen closely.
    ( “Wikipedia,” 2011, “Uhler,” 1995)
  • American Black Bear Mule Deer Spotted Owl ( “Wikipedia,” 2011)
  • Rock-Granite
    • The most common rock that was seen was Granite.
    • Granite is an igneous rock
    • Composed of four minerals; quartz, feldspar, mica, and usually hornblende
    • It forms as magma cools far under the Earths surface very slowly
    • Description: Whitish or light gray
    • Also contains tiny crystals
    (“Topinka,” 2002)
  • Rocks-Granite/Schist
    • The top picture I believe was also Granite.
    • The Park was mostly made up of granite rocks with less than 5% of there being sedimentary or metamorphic rocks, most looked the same; whitish gray with crystals in it.
    • The bottom is a metamorphic rock which may be called a Schist Rock.
    • It is made up of quartz, feldspar, mica
    • Description: Silvery, brownish, dark green with waves in it.
    (“Topinka,” 2002)
  • References
    • &quot;Browse Trees—Tree Guide at Arborday.org.&quot; Buy Trees and Learn About Trees - Visit Our Online Nursery . Arbor Day Foundation. Web. 26 Oct. 2011. <http://www.arborday.org/treeguide/browsetrees.cfm>.
    • French, Dave. &quot;The Mist Trail Yosemite National Park.&quot; Climbing, Hiking and Mountaineering at Timberline Trails. Timberlines Trails. Web. 24 Oct. 2011. <http://timberlinetrails.net/YosemiteMistTrail.html>.
    • Peck, Donald B. &quot;Rock Key.&quot; Bob's Rock Shop: The First 'Zine for Mineral Collectors and Rockhounds . Don Peck, 2001. Web. 28 Oct. 2011. <http://www.rockhounds.com/rockshop/rockkey/>.
    •   Tasev, Ivan. &quot;Google Custom Maps | Mapsys.info.&quot; Mapsys Info - Mapping and Geospatial News. Google, 2011. Web. 29 Sept. 2011. <http://mapsys.info/62799/google-custom- maps/>.
    • Topinka, Lyn. &quot;CVO Menu - America's Volcanic Past - Yosemite.&quot; USGS Cascades Volcano Observatory (CVO). USGS, 20 Sept. 2002. Web. 27 Oct. 2011. <http://vulcan.wr.usgs.gov/LivingWith/VolcanicPast/Places/volcanic_past_yosemite.html>.
    • Uhler, John W. &quot;Yosemite National Park Information Page.&quot; Yosemite National Park. Hillclimb Media, 1995. Web. 26 Oct. 2011. <http://www.yosemite.national-park.com/info.htm>.
    •   &quot;Yosemite Hikes: The Mist Trail.&quot; Yosemite Hikes: The Best Hikes in Yosemite National Park. Yosemite Hikes, 2006. Web. 28 Oct. 2011. <http://www.yosemitehikes.com/yosemite- valley/mist-trail/mist-trail.htm>.
    •   &quot;Yosemite National Park (U.S. National Park Service).&quot; U.S. National Park Service - Experience Your America. National Park Sevice, 2011. Web. 24 Oct. 2011. <http://www.nps.gov/yose/index.htm>.
    •   &quot;Yosemite National Park.&quot; Wikipedia, the Free Encyclopedia. Wikipedia. Web. 28 Oct. 2011. <http://en.wikipedia.org/wiki/Yosemite_National_Park>.