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Photo ID: h0x8iz	Subject: Volcanoes	Description
	Active Volcanoes; Cascade Range; Eruptions; Geologic Hazards; Intrustion; Lava; Stratovolcanoes; Uplift; Volcanic Features; Volcanism; Volcanology	Mt. St. Helens erupted again in October of 1986. A new lobe was extruded, increasing the dome's height to 925 feet. This is a 30 minute Moon-lit exposure, showing hot rock glowing from the new lobe. This view is from Harrys Ridge, five miles north of the volcano.
	Photographer	Location
	Lyn Topinka Credit Line: Courtesy USGS Cascade Volcano Observatory	North America; United States; Washington; Mount Saint Helens
Photo Quality \| Large	Available for Commercial Use

Photo ID: h0x8m8	Subject: Volcanoes	Description
	Active Volcanoes; Cascade Range; Eruptions; Hydrology; Stratovolcanoes; Volcanic Effects; Volcanism; Volcanology	Hydrologists on Mt. St. Helens measuring stream discharge and taking water samples to determine how much sediment is suspended in the stream and how much sediment is moving along the streambed.
	Photographer	Location
	Lyn Topinka Credit Line: Courtesy USGS Cascade Volcano Observatory	North America; United States; Washington; Mount Saint Helens
Photo Quality \| Large	Available for Commercial Use

Photo ID: h0x8pn	Subject: Volcanoes	Description
	Active Volcanoes; Cascade Range; Eruptions; Geologic Hazards; Stratovolcanoes; Volcanic Debris; Volcanic Effects; Volcanism; Volcanology	USGS Hydrologists measure changes in erosion along the stream channels affected by the 1980 Mt. St. Helens eruption. These measurements are used to study the erosion processes and to estimate the severtiy of the sedimentation problem. The view here is along the Muddy River drainage, one mile southeast of the volcano's base.
	Photographer	Location
	Lyn Topinka Credit Line: Courtesy USGS Cascade Volcano Observatory	North America; United States; Washington; Mount Saint Helens
Photo Quality \| Large	Available for Commercial Use

Photo ID: h0x8st	Subject: Volcanoes	Description
	Active Volcanoes; Cascade Range; Ejecta; Eruptions; Geologic Hazards; Stratovolcanoes; Volcanic Features; Volcanism; Volcanology	Plumes of steam, gas, and ash often occur on Mt. St. Helens. On clear days they can be seen from Portland, Oregon, 50 miles to the south. The plume photographed here in 1984 rose nearly 3000 feet above the volcano's rim. The view is from Harrys Ridge, five miles north of the mountain.
	Photographer	Location
	Lyn Topinka Credit Line: Courtesy USGS Cascade Volcano Observatory	North America; United States; Washington; Mount Saint Helens
Photo Quality \| Large	Available for Commercial Use

Photo ID: h0x8w2	Subject: Volcanoes	Description
	Active Volcanoes; Calderas; Cascade Range; Eruptions; Stratovolcanoes; Volcanic Effects; Volcanic Features; Volcanology	Mt. St. Helens soon after the May 18, 1980 eruption, as viewed from Johnston's Ridge. Photo taken September 10, 1980.
	Photographer	Location
	USGS CVO Credit Line: Courtesy USGS Cascade Volcano Observatory	North America; United States; Washington; Mount Saint Helens
Photo Quality \| Large	Available for Commercial Use

Photo ID: h0x8zd	Subject: Volcanoes	Description
	Active Volcanoes; Calderas; Cascade Range; Craters; Eruptions; Geologic Hazards; Lava Dome; Stratovolcanoes; Volcanics; Volcanology	Four years after Mt. St. Helens erupted on May 18, 1980. This view is from Johnston's Ridge. Note the growth in the lava dome in the crater and the development of the drainage channels around the volcanoes flanks. Taken in September of 1984
	Photographer	Location
	Lyn Topinka Credit Line: Courtesy USGS Cascade Volcano Observatory	North America; United States; Washington; Mount Saint Helens
Photo Quality \| Large	Available for Commercial Use

Photo ID: h0x923	Subject: Volcanoes	Description
	Active Volcanoes; Ash; Biology; Cascade Range; Eruptions; Geologic Hazards; Volcanic Effects; Volcanism; Volcanology	By late 1980, animals were making a comeback in the area of Mt. St. Helens after its eruption. Many smaller animals were hibernating blow ground when the mountain erupted in May, so they were protected from the blast. Larger animals such as deer and bears slowly moved back into the area as food supplies increased.
	Photographer	Location
	Lyn Topinka Credit Line: Courtesy USGS Cascade Volcano Observatory	North America; United States; Washington; Mount Saint Helens
Photo Quality \| Large	Available for Commercial Use

Photo ID: h27kub	Subject: Volcanoes	Description
	Cascade Range; Craters; Eruptions; Geologic Hazards; Igneous Rocks; Lakes; Lava Flows; Mountains; Plutonic Rocks; Volcanic Features; Volcanics; Volcanism; Volcanology	Lava flows at Crater Lake in Oregon.
	Photographer	Location
	Bruce Molnia Credit Line: Copyright © Bruce Molnia, Terra Photographics	North America; United States; Oregon; Crater Lake National Park
Photo Quality \| Large	Available for Commercial Use

Photo ID: h2el84	Subject: Volcanoes	Description
	Active Volcanoes; Cascade Range; Damage; Eruptions; Geologic Hazards; Mud; Mud Flows; Natural Hazards; Stratovolcanoes; Volcanic Features; Volcanism; Volcanology	Mount Saint Helens is a volcano in the Cascade Range of southwestern Washington. On 18 May 1980, it erupted with such violence that the top of the mountain was blown off, spewing a cloud of ash and gases that rose to an altitude of 19 kilometers. Massive mudflows were created in the streams flowing from the mountain. The mudflow that came down this stream erased this 6 year old bridge and stripped branches off trees 30 feet above water level.
	Photographer	Location
	USGS Credit Line: Courtesy United States Geological Survey	North America; United States; Washington; Mount Saint Helens
Photo Quality \| Large	Available for Commercial Use

Photo ID: h2elaz	Subject: Volcanoes	Description
	Active Volcanoes; Cascade Range; Damage; Deforestation; Destruction; Eruptions; Explosive Eruptions; Geologic Hazards; Stratovolcanoes; Volcanic Features; Volcanism	Mount Saint Helens is a volcano in the Cascade Range of southwestern Washington. On 18 May 1980, it erupted with such violence that the top of the mountain was blown off, spewing a cloud of ash and gases that rose to an altitude of 19 kilometers. The trees in this forest were stripped and leveled by the blast.
	Photographer	Location
	USGS Credit Line: Courtesy United States Geological Survey	North America; United States; Washington; Mount Saint Helens
Photo Quality \| Large	Available for Commercial Use

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