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Geologic map of the Leadville North 7.5’ quadrangle, Eagle and Lake Counties, Colorado Geologic map of the Leadville North 7.5’ quadrangle, Eagle and Lake Counties, Colorado
The Leadville North 7.5’ quadrangle lies at the northern end of the Upper Arkansas Valley, where the Continental Divide at Tennessee Pass creates a low drainage divide between the Colorado and Arkansas River watersheds. In the eastern half of the quadrangle, the Paleozoic sedimentary section dips generally 20–30 degrees east. At Tennessee Pass and Missouri Hill, the core of the Sawatch
May 18—Thermal map of northeast end of fissure system May 18—Thermal map of northeast end of fissure system
Thermal map shows a close up of the northeastern end of the fissure system
Satellite images show changes to Kīlauea caldera floor, May 5–May 17 Satellite images show changes to Kīlauea caldera floor, May 5–May 17
Radar amplitude images show changes to the caldera area of Kīlauea Volcano
Kīlauea Lower East Rift Zone Fissures and Flows, May 16 at 7:00 a.m. HST Kīlauea Lower East Rift Zone Fissures and Flows, May 16 at 7:00 a.m. HST
Location of the lava flow spreading from fissure 17
May 16—Thermal map of northeast end of fissure system May 16—Thermal map of northeast end of fissure system
Thermal map shows a close up of the northeastern end of the fissure system
Kīlauea Lower East Rift Zone Fissures and Flows, May 15 at 7:00 a.m. HST Kīlauea Lower East Rift Zone Fissures and Flows, May 15 at 7:00 a.m. HST
Location of the ‘a‘ā lava flow spreading from fissure 17
May 15—Thermal map of northeast end of fissure system May 15—Thermal map of northeast end of fissure system
Thermal map shows a close up of the northeastern end of the fissure system.
May 14—Thermal map of northeast end of fissure system May 14—Thermal map of northeast end of fissure system
Close up of the northeastern end of the fissure system.
May 14—Thermal map of the fissure system May 14—Thermal map of the fissure system
Thermal map shows the fissure system during an overflight of the area in Leilani Estates
Surficial geologic map of the Dillingham quadrangle, southwestern Alaska Surficial geologic map of the Dillingham quadrangle, southwestern Alaska
The geologic map of the Dillingham quadrangle in southwestern Alaska shows surficial unconsolidated deposits, many of which are alluvial or glacial in nature. The map area, part of Alaska that was largely not glaciated during the late Wisconsin glaciation, has a long history reflecting local and more distant glaciations. Late Wisconsin glacial deposits have limited extent in the eastern...