Trinidad Lake

Trinidad Lake State Park

State Park in Trinidad, CO

Hours:

Park: Daily, 5 a.m. to 10 p.m.
Office: Daily, 9 a.m. to 5 p.m.

Entrance Fees:

Daily Vehicle Pass: $​10
Individual Daily Pass: $4

Animals Permitted:

  • Leashed Dogs
  • Service Animals
  • Horses

Park Address:

32610 Highway 12
Trinidad, CO 81082
United States

Contact:

719-846-6951

[email protected]

Fax:

719-846-0676

Trinidad Lake and shoreline with mountains in the distance.

Trinidad Lake State Park

State Park in Trinidad, CO

Trinidad Lake and shoreline with mountains in the distance.

Hours:

Park: Daily, 5 a.m. to 10 p.m.
Office: Daily, 9 a.m. to 5 p.m.

Entrance Fees:

Daily Vehicle Pass: $​10
Individual Daily Pass: $4

Animals Permitted:

  • Leashed Dogs
  • Service Animals
  • Horses

Park Address:

32610 Highway 12
Trinidad, CO 81082
United States

Contact:

719-846-6951

[email protected]

Fax:

719-846-0676

Navigate to:

Aerial view of Trinidad Lake including campsites

Aerial view of Trinidad Lake including campsites

About this park

Welcome to Trinidad Lake State Park

Trinidad Lake offers a serene escape from crowds, serving as an excellent base camp for exploring the outdoors and nearby attractions. With its mild climate and large lake, the park is perfect for water sports. Anglers can reel in rainbow and brown trout, largemouth bass, channel catfish, walleye, crappie and bluegill.

2,960

acres

73

campsites

46

picnic sites

10.3

miles of trails

Accessing the Park

    From I-25
    Follow I-25 S to County Rd 69.1 in Las Animas County. Take exit 11 from I-25 S. Follow County Rd 69.1 to County Rd 18.3. Turn Left on HWY 12. Turn left at the park sign/entrance road.

      The Trinidad Lake Visitor Center​ is located on the north side of the reservoir by the Carpios Ridge campground. This area can be accessed from Highway 12.

      Hours: 9 a.m. to 5 p.m. daily.  

      The boat ramp is located on the north side of the lake near the Carpios Ridge campground and accessed from Highway 12. 

      The ramp is open for the 2025 season. 

      There are no closures at this time. 

      Fees and Passes

      Daily Vehicle Pass

      Single vehicle and its occupants

      1 Day

      $10-$12

      Individual Daily Pass

      For individual entry on foot, bicycle, horseback, etc at select parks

      1 Day

      $4

      Keep Colorado Wild Pass

      DMV vehicle registration renewal option for Colorado residents

      12 Months

      $29

      Annual Vehicle Pass (Affixed)

      Pass for a single vehicle and its occupants

      12 Months

      $80

      Family Annual Pass (Hang Tag)

      Members of the same household

      12 Months

      $120

      Aspen Leaf Annual Pass

      Colorado residents 64+

      12 Months

      $70

      Centennial Pass

      Income-eligible Colorado residents

      12 Months

      $14

      Columbine Pass

      Colorado residents with disabilities

      12 Months

      $14

      Veterans License Plate

      DMV vehicle registration renewal option for military veterans (disabled veterans or purple heart plates)

      Lifetime

      Free

      Independence Lifetime Pass

      Colorado resident veterans with disabilities

      Lifetime

      Free

      Blue Spruce Pass

      Colorado resident first responders with disabilities

      Lifetime

      $10

      Nature and Wildlife

      The pinyon-juniper forest offers wildlife viewing of many bird species, including pinyon jay and roadrunners. A variety of mammals can be seen, such as deer, elk and smaller animals.

      Be on the Lookout for Birds

      Can you spot all the resident and visiting bird species? Download the Bird List Brochure (PDF).

        Birds You Might Find

        • Great Blue Heron
        • Woodhouse's Scrub-Jay
        • Juniper Titmouse
        • Greater Roadrunner
        Great blue heron

        Great Blue Heron.

        Mammals You Might Find

        • Elk
        • Mule Deer
        • Rock Squirrel
        • Mountain Lion
        Mountain lion in the snow

        Mountain Lion in the snow.

        Reptiles and Amphibians You Might Find

        • Prairie Rattlesnake
        • Gopher Snake
        • Greater Short-horned Lizard
        • Woodhouse's Toad
        Prairie rattlesnake

        Prairie Rattlesnake.

        Geology at This Park

        The park is home to the K-T or K-Pg Boundary, which marks the boundary between the Mesozoic and Cenozoic geologic eras. It is believed that the park offers one of the best examples in the world of this boundary. Within the park, the Purgatoire River cuts through Upper Cretaceous Trinidad sandstone, which caps the valley rim, and Pierre shale, which is visible throughout the park. The combination of buff-colored sandstone and dark-gray siltstone and shale provides a subtle backdrop for the lake and river valley.

        Distinct layers of rock are visible.

        Distinct layers of rock are visible.

        Habitats and Plants at This Park

        Pinyon-juniper woodland and short and mixed-grass prairies occupy park uplands. The pinyon-juniper woodland community occurs on rocky outcrops and slopes over one-third of the park. Pinyon pine, one-seed juniper, Rocky Mountain juniper, and scrubland species such as Gambel oak, mountain mahogany and serviceberry occupy the park.

        Mixed-grass prairie is made of western wheatgrass, needle and thread grass, and Indian ricegrass. Shortgrass prairie is made of blue grama, galleta and side oats grama. Saline bottomland scrubland, made of rabbitbrush, four-wing saltbush and alkali sacaton, grows in areas disturbed in the past by ground work and earthmoving activities.

        Diverse wetland, riparian and aquatic plant communities have become established around the reservoir, in the Purgatoire River Valley above the reservoir and below the dam. Riparian scrubland is made of sandbar willow and typically grows adjacent to cottonwood forests.

        Thick brush and trees around the lake

        Thick brush and trees around the lake.

        Upcoming Events

        Images for the 2025 officer recruitment campaign

        Sep

        11

        Hiring Webinar: Become a CPW Officer

        Thursday, Sep 11

        Arkansas Headwaters Recreation Area

        To help applicants with the hiring process, Colorado Parks and Wildlife hosts a virtual Hiring Q&A Webinar. During the webinar...

        Images for the 2025 officer recruitment campaign

        Sep

        11

        Registration Required:

        Event participants must register

        Hiring Webinar: Become a CPW Officer

        Thursday, Sep 11

        Arkansas Headwaters Recreation Area

        To help applicants with the hiring process, Colorado Parks and Wildlife hosts a virtual Hiring Q&A Webinar. During the webinar...

        Nov

        11

        Free Park Entry for Veterans and Active Military

        Tuesday, Nov 11

        Arkansas Headwaters Recreation Area

        As a thank you to U.S. military members, Colorado Parks and Wildlife offers veterans, active-duty military and the National...

        Nov

        11

        Registration Required:

        Event participants must register

        Free Park Entry for Veterans and Active Military

        Tuesday, Nov 11

        Arkansas Headwaters Recreation Area

        As a thank you to U.S. military members, Colorado Parks and Wildlife offers veterans, active-duty military and the National...

        Images for the 2025 officer recruitment campaign

        Sep

        11

        Hiring Webinar: Become a CPW Officer

        Thursday, Sep 11

        Arkansas Headwaters Recreation Area

        To help applicants with the hiring process, Colorado Parks and Wildlife hosts a virtual Hiring Q&A Webinar. During the webinar...

        Images for the 2025 officer recruitment campaign

        Sep

        11

        Registration Required:

        Event participants must register

        Hiring Webinar: Become a CPW Officer

        Thursday, Sep 11

        Arkansas Headwaters Recreation Area

        To help applicants with the hiring process, Colorado Parks and Wildlife hosts a virtual Hiring Q&A Webinar. During the webinar...

        Nov

        11

        Free Park Entry for Veterans and Active Military

        Tuesday, Nov 11

        Arkansas Headwaters Recreation Area

        As a thank you to U.S. military members, Colorado Parks and Wildlife offers veterans, active-duty military and the National...

        Nov

        11

        Registration Required:

        Event participants must register

        Free Park Entry for Veterans and Active Military

        Tuesday, Nov 11

        Arkansas Headwaters Recreation Area

        As a thank you to U.S. military members, Colorado Parks and Wildlife offers veterans, active-duty military and the National...

        History

        The legacy of Trinidad's early days and the influence of various groups are evident in historic sites like the Trinidad History Museum Complex, the Cokedale Historic District, and others listed on national and state registries. Archaeological sites in the park date from the early Sopris Phase (1075 to 1150 CE) to the Baca Phase, which was the Spanish-American occupation of the area from 1860 through 1900. The most widespread Native Tribes were the Jicarilla Apache, Utes and Comanches.

        • 1664: Spanish Arrival
          Archuleta leads the first Spanish expedition into the Purgatoire Valley, followed by Ulibarri in 1706 and Valverde in 1719. Valverde names the Purgatoire River, reflecting a tragic history.
        • 1821: Santa Fe Trail and William Becknell
          William Becknell opens the Santa Fe Trail, which passes near the park, becoming a vital trade route.
        • 1858: Settlers and Coal Mining
          Settlers farm along the Purgatoire, leading to the founding of Trinidad in 1858. The main economic base is sheep and cattle ranching. In 1876, the first coal mining operation begins, marking the start of a coal boom.
        • 1978: Trinidad Dam and Trinidad Lake Creation
          The US Army Corps of Engineers constructs Trinidad Dam, creating Trinidad Lake for irrigation and flood control.
        • 1980: Park Management
          Colorado State Parks, today called Colorado Parks and Wildlife, begins managing Trinidad Lake State Park.
        • 1985–1988: Sopris Mine Coal Tailing Reclamation
          A project led by the Division of Mined Land Reclamation reclaims a portion of the Sopris Mine coal tailing pile on park land.
        • 1991: Santa Fe National Historic Trail Designation
          Trinidad Lake becomes a Complementary Interpretive Facility for the Santa Fe National Historic Trail through an agreement with the National Park Service.
        • 1995: Horno Construction and Historic Bridge Recognition
          A traditional horno, an adobe oven used by early Native American cultures for cooking, is built in the park.
        • 1999: Historic Recognition for Reilly Canyon Bridge
          The Reilly Canyon Bridge, constructed in 1936 and featuring characteristic WPA construction, is added to the State Register of Historic Properties.
        • Present day: Historical Interpretation
          Interpretive displays and wayside exhibits scattered throughout the park tell visitors about the region's rich history.