San+Juan+Mountains+2B

The San Juan Mountains
=== By Eliana Laudadio === The San Juan Mountains are located at about 78N and 24W. Many of the towns used to be mines, to dig up gold or silver. The mountains are really bumpy and have many peaks. The south-west parts of the San Juan Mountains are the bumpiest out of the rest. The San Juan Mountains seem to attract many tourists, mainly because of their beauty and high peaks. The San Juan Mountains are part of the Rocky Mountains, which is how they get their beauty. The San Juan Mountains have many peaks that are within 14,000 feet, they are known as the fourteeners. Most of the high elevation there is also formed by volcanoes. The high peaks and beautiful looks can make anyone want to go there. The San Juan Mountains were made from weathering and erosion from crystalline and Paleozoic sedimentary rock. At the time landslides in many areas are actively eroding away places of high relief Rock glaciers are very common in the San Juan Mountains. they form were talus accumulates at the base of steep mountains flakes. The San Juan mountains are characterized by spectacular Constructive Forces The San Juan Mountains are the biggest mountain range of Volcanic Material within the area. These volcanic mountains used to cover the land with great thickness of volcanic ash. Some of the eruptions made ash flows or streams. Hot ash mixed with extremely hot volcanic gases, and it flowed down the sides of volcanoes with a lot of velocity. The resulting ash deposits are called Welded Tuffs. The hot ash compacts and cements to make a sedimentary rock. When the magma or lava cools it makes an igneous rock. Those are only some of the many constructive forces of the San Juan Mountains.