The northern and western reaches of Fullerton are dominated by the Coyote Hills, a low-lying mountain range divided into the East Coyote Hills and West Coyote Hills. The land south of West Coyote Hills is known as Sunny Hills. For most of the city's history these areas were groves of citrus trees, open scrubland, and oil fields. While equestrian trails and many old estates endure along Bastanchury Road, the meandering roads through these areas today mostly connect a succession of housing tract subdivisions and commercial developments. In recent years, the City Council has tried to allow development in the remaining open land throughout the city. The most notable impending project, in West Coyote Hills, has been met with opposition by many of the citizens in the area.