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
Background and Method
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)
Located in the central Sierra Nevada of California
Coordinates 37° 44′ 42.73″ N, 119° 35′ 53.6″ W
(“Tasev,” 2011, “Uhler,” 1995)
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.
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.
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.
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.
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.
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
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)
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.
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
(“Yosemite,” 2006, “Yosemite,” 2011)
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
(“Yosemite,” 2006, “Yosemite,” 2011)
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
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)
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)
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
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.
"Browse Trees—Tree Guide at Arborday.org." 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. "The Mist Trail Yosemite National Park." Climbing, Hiking and Mountaineering at Timberline Trails. Timberlines Trails. Web. 24 Oct. 2011. <http://timberlinetrails.net/YosemiteMistTrail.html>.
Peck, Donald B. "Rock Key." 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/>.
Uhler, John W. "Yosemite National Park Information Page." Yosemite National Park. Hillclimb Media, 1995. Web. 26 Oct. 2011. <http://www.yosemite.national-park.com/info.htm>.
"Yosemite Hikes: The Mist Trail." 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>.
"Yosemite National Park (U.S. National Park Service)." U.S. National Park Service - Experience Your America. National Park Sevice, 2011. Web. 24 Oct. 2011. <http://www.nps.gov/yose/index.htm>.
"Yosemite National Park." Wikipedia, the Free Encyclopedia. Wikipedia. Web. 28 Oct. 2011. <http://en.wikipedia.org/wiki/Yosemite_National_Park>.