A tiltmeter on Mauna Loa, used to predict eruptions by measuring very small changes in the profile of the mountain. A tiltmeter is a sensitive inclinometer designed to measure very small changes from the vertical level, either on the ground or in structures.
Mr. Billion - 1977: Filming was done at the Sonoma-Marin Fairgrounds and the Petaluma Speedway. Cujo - 1983: Stephen King's horror flick about a rabies infested St. Bernard featured the Scott Ranch Hills off of Corona Rd. Explorers - 1985: A very young Ethan Hawke and River Phoenix starred in this absurd SciFi movie.
Another favorite location for some of the Stephen King characters in multiple books to be based: Castle Rock, Maine. George Bannerman was the calmly sedate Sheriff of Castle Rock in both The Dead Zone (1979) and Cujo (1981). Unfortunately, his stint as Sheriff in Cujo comes to a rather bloody end.