- Presidios: These were military forts that were used to protect the Spanish frontier from Native American attacks. They were typically located in strategic locations, such as mountain passes or river crossings.
- Missions: These were religious outposts that were used to convert Native Americans to Christianity. They were typically staffed by Franciscan or Jesuit priests.
- Haciendas: These were large agricultural estates that were owned by Spanish settlers. They were typically worked by Native American laborers.