m01229: Tulelake, California - July 9, 2019: Sign warning visitors to get a screening pass before entering caves in Lava Beds National Monument, preventing White Nose Syndrome, killing bats
m01229: Sign for Lyons Trail, located in Lava Beds National Monument in Northern California
m01229: Tulelake, California - July 9, 2019: Entrance sign for Lava Beds National Monument in Northern California, allows visitors to enter underground caves
m01229: Happy woman explorer holds a flashlight while caving and spelunking underground at Lava Beds National Monument in California
m01229: Sign for the Bunchgrass Overlook in Lava Beds National Park in Modoc County California
m01229: Modoc County, CA - July 9, 2019: Cave closure sign to protect the Townsend Big Eared Bats from human distrubance
m01229: Sign for the Upper Entrance to the Sentinel Cave in Lava Beds National Monument in California USA
m01229: Directional sign in Lava Beds National Monument leads hikers to restrooms, caves and the Lyons Trail
m01229: Schonchin Butte in Lava Beds National Monument in California
m01229: Blonde woman holds a flashlight under her chin, as if telling a ghost story. Light illuminates face
m01229: Entrance to the Sentinal Cave in Lava Beds National Monument in California
m01229: View of the Tulelake Internment Camp (Camp Tulelake), a War Relocation Center during WW2 for for the incarceration of Japanese Americans
m01229: View of the Tule Lake National Wildlife Refuge in Northern California
m01229: Tulelake, California - July 9, 2019: Entrance sign for Lava Beds National Monument in Northern California, allows visitors to enter underground caves
m01229: Happy woman explorer holds a flashlight while caving and spelunking underground at Lava Beds National Monument in California
m01229: Entry to the mouth of the Sentinal Cave in Lava Beds National Monument in California
m01229: Entry to the mouth of the Sentinal Cave in Lava Beds National Monument in California
m01229: Tulelake, California - July 9, 2019: Sign for the Tule Lake National Wildlife Refuge, a popular spot for bird watching
m01229: Sign for the Merrill Cave in Lava Beds National Monument in California
m01229: Sign for the Whitney Butte Trail trailhead in Lava Beds National Monument in California
m01229: Sign for the Schonchin Butte Trail trailhead in Lava Beds National Monument in California
m01229: Fire lookout watchtower on top of Schonchin Butte in Lava Beds National Monument in California