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Park highway under construction near Sulphur Works
Road crews are working to repair the road near Sulphur Works hydrothermal area. Road will be open, with one-way controlled traffic at Sulphur Works, during the Memorial Day weekend (5/24-5/27).
Explore the Undiscovered
Lassen Volcanic National Park is home to smoking fumaroles, meadows freckled with wildflowers, clear mountain lakes, and numerous volcanoes. Jagged peaks tell the story of its eruptive past while hot water continues to mold the land. Lassen Volcanic offers opportunities to discover the wonder and mysteries of volcanoes and hot water for visitors willing to explore the undiscovered.
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Nearby Earthquake Activity
Volcanic activity is not expected in Lassen as result of the recent nearby earthquakes. Learn more about seismic monitoring at Lassen and worldwide.
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Road Opening Schedule
The park highway is open to through traffic through Monday, May 27.
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Plan Your Memorial Day Weekend
Read about current conditions to help you plan your Memorial Day weekend at Lassen.
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New Junior Ranger Activity Booklet
This summer, kids age 7 to 12 can pick up a new and improved Jr. Ranger activity booklet or print a copy from home.
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Summer Newspaper Available
The new summer edition of the park newspaper is now available online. Please note that winter conditions persist in the park at this time.
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Lassen Peak Summit Open Dates
Lassen Peak trail summit open dates are now available for the 2013 summer season. Be prepared for snow in June and July.
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New Summer Field Seminars Announced
Lassen Association field seminars are now open for registration. Improve your photography skills or dive into the geologic story of the park.
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Lassen Comes to Life
In 1915, an eruption at Lassen Peak devastated nearby areas and rained volcanic ash 200 miles away. Today, scientists measure volcanic activity here.
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Did You Know?
The 29 mile Main Park Road was constructed between 1925 and 1931, just 10 years after Lassen Peak erupted. Near Lassen Peak the road reaches 8512 feet, making it the highest road in the Cascade Mountains. It is not unusual for 40 feet of snow to accumulate on the road near Lake Helen.