What kind of volcano in Lassen Peak?

Although less well known than many other national parks, Lassen Volcanic National Park, located in north central California at the southern end of the Cascade mountain range, is one of the most beautiful and interesting of America's parks. It is the only national park in the contiguous 48 states containing a volcano which has erupted in the twentieth century (as is a "Volcanic National Monument").

Lassen Peak is a composite volcano.

Lassen Volcanic National Park - Wikipedia

Lassen Volcanic National Park (U.S. National Park Service)

The park's 160,000 acres--150 square miles--contain spectacular mountain lakes, creeks, elevations ranging from 5,300 to over 10,000 feet, and many trails. The park contains a wide variety of nearly every volcanic known feature. The centerpiece of the park is the 10,457 foot volcano, known as Lassen Peak, and seen from Manzanita Lake above. The stone entrance sign in the southwest area of the park is known as the Raker Memorial, which was built in 1931.

Webcams - Lassen Volcanic National Park (U.S

Another volcanic feature, not directly related to Lassen Peak, is in the northeast corner of the park. The Fantastic Lava Beds are basalt lava flows that came from Cinder Cone, a cinder cone volcano on the western edge of the flows. The flows dammed creeks, creating Snag Lake, the large lake to the south of the Fantastic Lava Beds, and Butte Lake to the north. The lakes appear black in contrast to the lava flows.

Lassen Volcanic National Park
Lassen Volcanic National

Hiking in Lassen Volcanic National Park - Anywhere at …

Lassen Volcanic National Park lies in Northern California at the southern end of the Cascade Range. Along the western edge of the park is Lassen Peak, the active volcano for which the park was named. Although nearly a century has passed since its last eruption, signs of volcanic activity are still visible in this Landsat 7 false-color image. At 3,187 meters (10,456 feet), the peak is covered with snow, even though the image was taken in late June. The snow is blue in the false-color image. To the northeast of Lassen Peak is the Devastated Area. A 1915 eruption sent a flow of hot mud, water, and rocks (a lahar) barreling northeast across the Devastated Area. The eruption killed the forest and left a trail of loose rocks. Though the forest is returning, the rocks in the flow give the Devastated Area its pink color. To the northwest of Lassen Peak are the Chaos Crags, a series of dome volcanoes. Again, the non-vegetated rock is pink. An arc of snow-covered peaks extends southwest from Lassen Peak. These peaks are the remnants of Mt. Tehama, the massive ancient volcano from which Lassen Peak was born.

Lassen Volcanic National Park

Lassen Volcanic National Park, Lassen Peak - YouTube

Initially, the Lassen area escaped logging operations because of the lack of a mining industry, the area's relative inaccessibility, as well as poor quality of timber in local forests. By 1900, however, some timber operations threatened many of the forests in the Lassen area and generated considerable local sentiment for protecting it. In 1905 President Theodore Roosevelt proclaimed the Lassen Peak Forest Reserve. Louis Barrett and other local citizens at that time asked the president to consider makaing the Lassen area as a national park. Ongoing preservation efforts resulted in the declaration by President Theodore Roosevelt of Lassen Peak and Cinder Cone as national monuments on May 6, 1907.

The Lassen Volcanic National

Lassen Peak, Lassen Volcanic National Park | Wanderant

Lassen Peak is the southernmost in the chain of 13 large volcanic peaks that run from Washington to California. The peaks formed in the past 35 million years as the Juan De Fuca plate and the tiny Gorda plate to its south have been pulled under the overriding North American plate. As the oceanic crust in the Juan de Fuca plate melts under the pressure, it creates pools of lava that drive up the Cascade Range and power periodic eruptions in its volcanic peaks. The most recent volcanic eruption was at Mount St. Helens, but in 1914, Lassen began a seven-year-long series of eruptions. The most powerful of these eruptions was a 1915 episode that sent ash and steam in a ten-kilometer-tall mushroom cloud, making it the largest recent eruption in the contiguous 48 states until Mt. St. Helens took that title in 1980. The region remains geologically active, with mud pots, active fumaroles, and boiling water features, several of which are getting hotter. Lassen Volcanic National Park and nearby Shasta Peak are considered the most likely volcanoes in the Cascade Range to shift from dormancy to active eruptions.