[4] La Placita and Agua Mansa were the first non-native settlements in the San Bernardino Valley.

[8] Don Juan Bandini donated a portion of Rancho Jurupa to them on the condition that they would assist in protecting his livestock from Indian raids.

Lorenzo Trujillo led ten of the colonist families to 2,000 acres on the "Bandini Donation" on the southeast bank of the Santa Ana River and formed the village of La Placita while others went to the northwest bank of the river and created the town of Agua Mansa.

The area is now dominated by several industrial complexes and Riverside County waste transfer and recycling stations.

[13] The small structure south of the San Bernardino County boundary at the corner of Center and Orange Streets has been proposed for historic preservation.