The Sun lies in the direction of the vernal equinox around 21 March. Farvardin is the day whose midnight start is nearest to the instant of vernal equinox. It may contain a reference to the vernal equinox. It is customary to specify positions of celestial bodies with respect to the vernal equinox. This sacrifice takes place about the time of the vernal equinox. There are also secular holidays such as Kha b-Nisan (vernal equinox). Naturally occurring vernal ponds do not usually have fish. Vernal pools are a type of wetland. Tadpoles and frogs can be found in the local creeks and vernal pools. The university originally planned to conserve to protect sensitive vernal pool habitats. The most popular destination within northeastern Utah is Dinosaur National Monument near Vernal. Annuals comprise approximately 80 percent of vernal pool flora. Regional campuses exist in Brigham City, Tooele, and the Uintah Basin (Vernal and Roosevelt). Vernal, unlike most Utah towns, was not settled by Mormon Settlers. This permits flooding and development of vernal pools.