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Field assignment-Yosemite National Park.

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>.