The catastrophic, explosive eruption of Mount St. Helens, Washington, on May 18, 1980, is the most well-known eruption of the volcano. Less well known is the May 18th eruption marked the beginning of a period of eruptive activity that lasted through 1986. From October 1980 through October 1986, a series of 17 dome-building episodes added millions of cubic meters of lava to the crater floor. Most of the growth occurred when magma extruded onto the surface of the dome, forming short (650 to 1,300 feet), thick (65 to 130 feet) lava flows. This data release is a 1-meter resolution digital elevation model (DEM) and a corresponding hillshade raster derived from a previously unpublished 1:2,000 scale topographic contour map, based on aerial photographs taken on November 12, 1986, created by USGS for use during the response to the eruption.

The catastrophic, explosive eruption of Mount St. Helens, Washington, on May 18, 1980, is the most well-known eruption of the volcano. Less well known is that the May 18 eruption marked the beginning of a period of eruptive activity that lasted through 1986. Beginning in October 1980, a series of 17 dome-building episodes added millions of cubic meters of lava to the crater floor. Most of the growth occurred when magma extruded onto the surface of the dome, forming lava flows approximately 198 to 396 meters (650 to 1,300 feet) long and 20 to 40 meters (65 to 130 feet) thick. This data release is a 1-meter resolution digital elevation model (DEM) and a corresponding hillshade raster derived from a previously unpublished 1:2,000 scale topographic contour map, based on aerial photographs taken on April 14, 1984, created by USGS for use during the response to the eruption.

The catastrophic, explosive eruption of Mount St. Helens, Washington, on May 18, 1980, is the most well-known eruption of the volcano. Less well known is the May 18 eruption marked the beginning of a period of eruptive activity that lasted through 1986. Beginning in October 1980, a series of 17 dome-building episodes added millions of cubic meters of lava to the crater floor. Most of the growth occurred when magma extruded onto the surface of the dome, forming lava flows up to approximately 198 to 396 meters (650 to 1,300 feet) long and 20 to 40 meters (65 to 130 feet) thick. This data release is a 1-meter resolution digital elevation model (DEM) and a corresponding hillshade raster derived from a previously unpublished 1:2,000 scale topographic contour map, based on aerial photographs taken on August 29, 1984, created by USGS for use during the response to the eruption.

The catastrophic, explosive eruption of Mount St. Helens, Washington, on May 18, 1980, is the most well-known eruption of the volcano. Less well known is the May 18 eruption marked the beginning of a period of eruptive activity that lasted through 1986. Beginning in October 1980, a series of 17 dome-building episodes added millions of cubic meters of lava to the crater floor. Most of the growth occurred when magma extruded onto the surface of the dome, forming lava flows up to approximately 198 to 396 meters (650 to 1,300 feet) long and 20 to 40 meters (65 to 130 feet) thick. This data release is a 1-meter resolution digital elevation model (DEM) and a corresponding hillshade raster derived from a previously unpublished 1:2,000 scale topographic contour map, based on aerial photographs taken on August 29, 1984, created by USGS for use during the response to the eruption.

The catastrophic, explosive eruption of Mount St. Helens, Washington, on May 18, 1980, is the most well-known eruption of the volcano. Less well known is the May 18 eruption marked the beginning of a period of eruptive activity that lasted through 1986. Beginning in October 1980, a series of 17 dome-building episodes added millions of cubic meters of lava to the crater floor. Most of the growth occurred when magma extruded onto the surface of the dome, forming lava flows up to approximately 198 to 396 meters (650 to 1,300 feet) long and 20 to 40 meters (65 to 130 feet) thick. This data release is a 1-meter resolution digital elevation model (DEM) and a corresponding hillshade raster derived from a previously unpublished 1:2,000 scale topographic contour map, based on aerial photographs taken on August 17, 1983, created by USGS for use during the response to the eruption.

The catastrophic, explosive eruption of Mount St. Helens, Washington, on May 18, 1980, is the most well-known eruption of the volcano. Less well known is the May 18 eruption marked the beginning of a period of eruptive activity that lasted through 1986. Beginning in October 1980, a series of 17 dome-building episodes added millions of cubic meters of lava to the crater floor. Most of the growth occurred when magma extruded onto the surface of the dome, forming lava flows up to approximately 198 to 396 meters (650 to 1,300 feet) long and 20 to 40 meters (65 to 130 feet) thick. This data release is a 1-meter resolution digital elevation model (DEM) and a corresponding hillshade raster derived from a previously unpublished 1:2,000 scale topographic contour map, based on aerial photographs taken on June 23, 1982, created by USGS for use during the response to the eruption.

The catastrophic, explosive eruption of Mount St. Helens, Washington, on May 18, 1980, is the most well-known eruption of the volcano. Less well known is the May 18 eruption marked the beginning of a period of eruptive activity that lasted through 1986. Beginning in October 1980, a series of 17 dome-building episodes added millions of cubic meters of lava to the crater floor. Most of the growth occurred when magma extruded onto the surface of the dome, forming lava flows up to approximately 198 to 396 meters (650 to 1,300 feet) long and 20 to 40 meters (65 to 130 feet) thick. This data release is a 1-meter resolution digital elevation model (DEM) and a corresponding hillshade raster derived from a previously unpublished 1:2,000 scale topographic contour map, based on aerial photographs taken on June 23, 1982, created by USGS for use during the response to the eruption.

On May 18, 1980, Mount St. Helens, Washington, exploded in a spectacular and devastating eruption that resulted in previously unimaginable events that drastically altered the mountain and the surrounding area. One unprecedented event was the collapse of the summit and north flank of the volcano forming a huge landslide known as the ‘debris avalanche’ with a total volume of about 2.5 km3 (3.3 billion cubic yards). The debris avalanche swept around and up ridges to the north, but most of it turned westward as far as 23 km (14 mi) down the valley of the North Fork Toutle River and formed a hummocky deposit. This had a profound effect on the topography of the area, including transforming the summit cone of the volcano into an amphitheater-shaped crater, in places, burying the valley north of the volcano under hundreds of feet of debris, and filling the Spirit Lake basin raising the surface elevation 64 m (210 ft). This release consists of a 10-meter resolution digital elevation model, covering an area of 196.45 sq km, and hillshade map of the summit and valley north of the volcano circa 1952 surface derived from contour lines digitized from historic topographic maps. These data represent the paleo topography of Mt St. Helens and vicinity that were most significantly altered by the 1980 eruption and debris avalanche.

We depict changing eruptive features within the summit caldera of Kilauea volcano, Island of Hawai'i with rapid-response digital elevation models (DEMs) acquired since a series of caldera-filling effusive eruptions began on December 20, 2020. These eruptions follow the caldera collapse of 2018, with new lava progressively filling the approximately 1-cubic-kilometer pit that formed between May and August of that year. The majority of the provided DEMs were constructed via structure-from-motion (SfM) photogrammetry from either helicopter or uncrewed aircraft system (UAS) overflight images, with the remainder constructed via terrestrial laser scanning (TLS) from the Halema'uma'u crater rim. These data were collected and processed using streamlined techniques to provide rapid-response representations of topography inside the caldera, with mid-grade process settings and approximate georeferencing.

We depict changing eruptive features within the summit caldera of Kilauea volcano, Island of Hawai'i with rapid-response digital elevation models (DEMs) acquired since a series of caldera-filling effusive eruptions began on December 20, 2020. These eruptions follow the caldera collapse of 2018, with new lava progressively filling the approximately 1-cubic-kilometer pit that formed between May and August of that year. The majority of the provided DEMs were constructed via structure-from-motion (SfM) photogrammetry from either helicopter or uncrewed aircraft system (UAS) overflight images, with the remainder constructed via terrestrial laser scanning (TLS) from the Halema'uma'u crater rim. These data were collected and processed using streamlined techniques to provide rapid-response representations of topography inside the caldera, with mid-grade process settings and approximate georeferencing.