Deep Underground, Miles of Hidden Wildfires Rage - TIME
By A Mystery Man Writer
As far as 90 feet underground and 100 feet thick, miles of coal seams are continually burning in the U.S. and elsewhere, releasing toxic fumes that funnel up to the surface
Deep Underground Military Bases - Secret Military Bases
Among the Truthers: A Journey Through America's Growing Conspiracist Underground: Kay, Jonathan: 9780062004819: : Books
Deadly Colorado blaze renews focus on underground coal fires - Los Angeles Times
Through Time Into Healing: Discovering the Power of Regression Therapy to Erase Trauma and Transform Mind, Body and Relationships: Weiss, Brian L.: 9780671867867: : Books
When wildfires hide underground – then rage again
600 miles of tunnels: Homeless staying underground in Las Vegas share stories
Wildfires Burning Through the West Are Terrifying—and Necessary, Too
Coal
More than 1 million acres have burned in California since July as monster fires rage around Bay Area
Weather Underground - Wikipedia
