Río Grande (Spanish pronunciation: [ˈri.o ˈɣɾande]) is a town and municipality of Puerto Rico located on the eastern edge of the Northern Coastal Valley, north of Las Piedras, Naguabo and Ceiba; east of Loíza and Canóvanas and west of Luquillo.

[3] Hurricane Maria on September 20, 2017, triggered numerous landslides in Río Grande with the significant amount of rainfall.

[4][5] Infrastructure was destroyed, trees were ripped out of the ground, and rivers were breached causing property losses to approximately 5000 people.

[3] Puerto Rico was ceded by Spain in the aftermath of the Spanish–American War under the terms of the Treaty of Paris of 1898 and became a territory of the United States.

Every March, Hyatt Regency Grand Reserve plays host to the PGA Tour's Puerto Rico Open.

[29] Main attractions of Río Grande are: The municipality has agricultural activity that produces fruits, vegetables, ornamental plants, tobacco, and cattle.

The Fiestas Patronales de Nuestra Señora del Carmen is a religious and cultural celebration that generally features parades, games, artisans, amusement rides, regional food, and live entertainment.

[35] The Río Grande flag consists of two horizontal stripes of equal size, upper one is green with lower one been blue, and united by a white triangle placed on the side of the mast.

[36] In a silver field, two Puerto Rican parrot (Amazona vitatta), accompanied by a waving blue stripe, a green mountain with three peaks.