The district was formed in 1974 to pay for costs of maintaining natural open space, green belt and slopes along major and collector roads, including the maintenance of all trees, shrubs, plants, etc., planted or placed within the open space area. The district includes all of the area bounded by the subdivision boundary for Ranchito Robinhood and Bonita Ridge Estates.

The maintenance consists in general of the following:

• Irrigation
• Fertilization
• Removal of weeds, trash and litter
• Pruning of trees and shrubs
• Replacement of dead or diseased trees and shrubs
• Repair of equipment and facilities
• Weed abatement