^ 1939, D. A. Paton, On the origin of aller, in Studies in French Language and Mediaeval Literature, page 301: The opinion that ambulare is the origin of aller has been and is held by so many eminent etymologists that it is with some diffidence I venture to suggest another source.
Thermal, California. For the former community in Fresno County, see Thermal, Fresno County, California. Thermal is an unincorporated community within the Coachella Valley in Riverside County, California located approximately 25 miles (40 km) southeast of Palm Springs and about 9.5 miles (15.3 km) north of the Salton Sea. The community's elevation is 138 feet (42 m) below mean sea level.
Some California volcanoes: Lassen Peak (Shasta County), Mt. Shasta (Siskiyou County) and Red Hill (Imperial County) A volcano is an opening in the earth's crust that allows molten rock from the mantle to flow out onto the surface as lava. Volcanoes also emit vast amounts of gas, primarily carbon dioxide, water vapor and sulfur dioxide. The fine solid rock particles injected into the atmosphere by an eruption can remain aloft for years.