 Many of the streets have names beginning with "Loma" (Spanish for hill), for example, Loma Clara, Loma del Sur, Loma Roja, Loma Franklin.North Hills is bordered on the west by a flood-control levee approximately half a mile west of Martin Luther King Boulevard; beyond it is Franklin Mountains State Park, which is closed to development and is open for hiking and biking.To the east, beyond a utility easement about three-eighths of a mile east of Martin Luther King Boulevard on the east side of the Richardson Middle School campus, is the newly developed Sandstone Ranch neighborhood; and to the north is undeveloped land used for grazing and slated for eventual development.