Lassen Volcanic vehicle-free day . October 18, 2014 was a vehicle-free day in Lassen Volcanic National Park. Bicyclists and hikers enjoyed spectacular weather.

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Photo credit: © Natural History Archive / Alamy / Afripics
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Keywords: america, american, bicycle, change, climate, conservation, country, history, land, lands, lassen, national, natural, nature, nps, park, parks, preserve, program, public, response, service, usa, volcanic, widlife, wilderness