Trinidad Lake State Park is a state park

State park

State parks are parks or other protected areas managed at the federated state level within those nations which use "state" as a political subdivision. State parks are typically established by a state to preserve a location on account of its natural beauty, historic interest, or recreational...

 near Trinidad, Colorado

Trinidad, Colorado

The historic City of Trinidad is a Home Rule Municipality that is the county seat and the most populous city of Las Animas County, Colorado, United States...

, United States. The park protects Trinidad Lake, a dammed reservoir. There are hiking trails, and camping and boating opportunities. The park features historical attractions such as the coal mining

Coal mining

The goal of coal mining is to obtain coal from the ground. Coal is valued for its energy content, and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United States,...

 ruins at Cokedale. An exposure of the K–T boundary

K–T boundary

The K–T boundary is a geological signature, usually a thin band, dated to 65.5 ± 0.3 Ma ago. K is the traditional abbreviation for the Cretaceous period, and T is the abbreviation for the Tertiary period...

 is visible in the southern part of the park.

A portion of the mountain route of the Santa Fe Trail

Santa Fe Trail

The Santa Fe Trail was a 19th-century transportation route through central North America that connected Missouri with Santa Fe, New Mexico. Pioneered in 1822 by William Becknell, it served as a vital commercial and military highway until the introduction of the railroad to Santa Fe in 1880...

runs through the park.