Engr 597 Tectonics
Formation of the Rocky Mountains
• How did they form?
• Sevier orogeny
• Laramide orogeny
• prevailing theory (flat slab subduction)
1. Very low angle subducting slab
2. rubbing against underside of North American plate
3. first proposed by william dickinson (1978)
4. another good paper Peter Bird (1988)
• Alternative theories
1. Craig jones - suction model
2. (maxson, Tikoff 1996) - Hit and run collision model
"I 'll come back to it"
Within the North American cordillera there lies an expansive region of mountain ranges, basins, and plateaus, stretching from Mexico through America and Canada all the way to Alaska. This region rises up from the ground like…
referred to meetings in the west at a designated place to trade furs and goods. The majority of rendezvous happened in the Rocky Mountain region and frequently occurred in Indian villages. Rendezvous started in the year 1810 and continued throughout the better part of the century up to the 1880’s. Rendezvous lasted anywhere from a couple days to several weeks (Harris 42). Rendezvous impacted the geographical movement of the American people. Rendezvous helped develop the west because they…
This gave the Chinese the idea to leave China and go to America. Another factor that was pushing them out was the exceeding population in China. In an article written by Kate Hooper,and Jeanne Batalova she states that “The 1890 decennial census reports a Chinese-born resident population exceeding 100,000”. This showed that the population was growing rapidly. The government had to work fast to accommodate the large growth. The population increase could be the biggest problems that caused China to…
Like much of this area of the country, Estes Park was heavily influenced by the gold rush of the 1850’s. this town was one of the many places prospectors and explorers came to in search of riches. Most of these individuals came from out east when they saw the news about all the gold out west. Estes Park is a small mountain town in western Colorado, located in Larimer County. The town is part of the Rocky Mountain National Park, one of the country’s 58 national parks. It is located 22.3 miles…
Ones the miners start to move up to the mountains into Golden, Blackhawk and Central City those are were the place where the miners would be more successful on finding more gold. The author’s state:
As many 25,000 entered the mountains between April and October by ear-ly about 10,000 remained in Colorado by early August 2,000 in Denver a few hundred in Golden, and most of the remainder engaged in the moun-tain placer operations or ever deepening lode mines. As late as September more than 2,000…
In the summer of 1842, Mountain Man Jim Bridger said he was building a trading post. From its beginnings as a trading post, Bridger's "fort" matured into a modern military post. It later turned into the town of Fort Bridger, the only town in Wyoming with roots to the Oregon Trail. Ft. Casper’s military post evolved from the Mormon Ferry Post and, after the 1,000 foot log bridge crossing North Platte River. The post was named after Casper Collins who was killed while protecting a supply train…
curried his horse beneath the huge cottonwood shade tree near his home on the Montana Indian reservation. At 10 years old, Shamus had become a good horseman and responsible owner of his brown quarter horse gelding, Two-Gun. Often times he and Two-gun would spend the hottest part of a prairie day under the tree. Both liked the occasional breezes that would blow gently across the buffalo grass plain and bringing the cool air to them under the tree. Both enjoyed the quiet relationship.
John Colter is one of the greatest explorers of all time. He traveled with Lewis and Clark, hiked 500 miles across Yellowstone, and got attacked by Indians! Tom Murphy is also a great explorer. Just like Colter, he too traveled across Yellowstone, braved out nights sleeping in Yellowstone with the constant threat of predators, and was prepared for anything. Except there's one small detail that separates these two famous explorers. They lived 200 years apart.
Although we have explored and know…
After three months on the trail the daily routine becomes monotonous. It becomes easy to overlook beauty, to put my headphones in, my head down, and walk right by the greatness around me. If I 'm not careful, I 'll become desensitized to the wild flowers, the trees and even the mountains themselves. I believe appreciation is a virtue, it can be trained to find beauty anywhere, or in apathy lost entirely. Some days I don…
Growing up in Thurmont, MD near the Catoctin Mountain National Parks, I was always considered an outdoor
kid. My parents got me interested in hunting & fishing and hunting became my true passion since my first
hunting experience at the age of 9. I started to trap shoot at the age of 13 and have grown to be a nationally-ranked
competitive trap shooter and a shooting ambassador. I have begun to work with my shooting club to
understand the working of a sporting clay and trap club, how competitions…