Ursa Minor (cave) Ursa Minor (cave) Ursa Minor Cave is part of Sequoia National Park, a naturally formed system of caves in California's Sierra Nevada. The cave was discovered in August 2006 by four cave explorers from the Cave Research Foundation who found a softball-sized hole on a cliff face in the mountains. After widening the hole to allow for human entry, the explorers discovered one of the most spectacular caves in the western United States. The cave has since been named "Ursa Minor," because of the large bear skeleton found in the cave. The cave was featured in the September 2007 issue
Ursa tension leg platform Ursa Tension Leg Platform was replaced as the tallest man-made structure in the world by the Magnolia Tension-leg Platform. Ursa tension leg platform The Ursa tension leg platform is an oil platform with a tension leg structure located at about southeast of New Orleans in the Gulf of Mexico. It is operated by Shell Oil Company. It has a total height from the seabed to its top of . Shell Oil is the operator of the project with 45.39%. BP Exploration & Production Inc has 22.69% while Exxon Mobil Corp and ConocoPhillips each have 15.96%. The discovery well was drilled