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.
The beach where John Ford filmed horseracing scenes is in the costal town of Renvyle in view of Lettergesh Post Office. Within the town of Cong there is the richest assortment of movie landmarks. Ashford Castle, where the crew and actors lived during filming, is just south of town.