Pasto Viejo, Cayey, Puerto Rico

The Planadas-Yeyesa Nature Reserve (Spanish: Reserva natural Planadas-Yeyesa) is a protected nature reserve located in the Sierra de Cayey, in the municipality of Salinas in central Puerto Rico. The reserve is located close to the famous Cerro Las Tetas (officially Piedras del Collado). Two of the most prominent features of the reserve are Cerro Planada, a 2,480 feet (755 m) high mountain peak, and La Yeyesa, a heavily forested canyon formed by the Lapa River and other streams which feed into the Nigua River. La Yeyesa can be accessed through a lightly trafficked yet moderate trail.The reserve is home to 198 species of trees and to 11 of the 17 endemic bird species found in Puerto Rico. The forest area is also home to the endangered Puerto Rican boa. In addition to its biodiversity, the reserve is home to several caves, such as El Ceto and La Iglesia Caves, which are home to indigenous Taíno petroglyphs.

Cerro Planada is a mountain peak located in Cayey, Puerto Rico. The mountain has an elevation of 2,480 feet (755 m), making it the 10th highest peak of the Sierra de Cayey.Cerro Planada is located in the boundary between the barrios (districts) of Lapa and Pasto Viejo. The mountain forms part of the Planadas-Yeyesa Nature Reserve, located in the municipalities of Cayey and Salinas.

Cerro Las Tetas, nicknamed Las Tetas de Cayey but officially Las Piedras del Collado, are two mountain peaks located in the municipality of Salinas, Puerto Rico, north of the city of Salinas proper. Since September 1, 2000, the peaks have become part of the Las Piedras del Collado Nature Reserve and are protected by law. Their height is 2,762 feet (842 m) above sea level.

Pedro Ávila is a barrio in the municipality of Cayey, Puerto Rico. Its population in 2010 was 125.

Matón Arriba is a barrio in the municipality of Cayey, Puerto Rico. Its population in 2010 was 961.

Piedras is a barrio in the municipality of Cayey, Puerto Rico. Its population in 2010 was 195.

Cuyón is a barrio in the municipality of Aibonito, Puerto Rico. Its population in 2010 was 977.The Cuyón River runs through this barrio and through Coamo.

Matón Abajo is a barrio in the municipality of Cayey, Puerto Rico. Its population in 2010 was 926.

The Río Matón Bridge, in Matón Abajo, a barrio of Cayey, Puerto Rico, was built in 1886. It was listed on the National Register of Historic Places in 1995.It is a lateral solid web girder bridge spanning Río Matón. It was built as part of the Carretera Central. Its iron span was designed by Spanish engineer Manuel Lopez-Bayo, and was brought from Europe. Its purchase cost was 11,105 francs.It carries Highway 14, at km 63.2. It has also been known as Bridge #1. Its designer was engineer, Manuel Lopez-Bayo. The bridge entered the NRHP because of its architecture and engineering and because it demonstrates an important time in the history of Puerto Rico.

Robles is a barrio in the municipality of Aibonito, Puerto Rico. Its population in 2010 was 3,863.

The Maton River is a river of Puerto Rico. It is spanned by the Río Matón Bridge, built in 1886.

Toíta is a barrio in the municipality of Cayey, Puerto Rico. Its population in 2010 was 5,281.