<Tr> <Th> Biscayne </Th> <Td> </Td> <Td> Florida 25 ° 39 ′ N 80 ° 05 ′ W ﻿ / ﻿ 25.65 ° N 80.08 ° W ﻿ / 25.65; - 80.08 ﻿ (Biscayne) </Td> <Td> 000000001980 - 06 - 28 - 0000 June 28, 1980 </Td> <Td> 7008699989247393156 ♠ 172,971.11 acres (700.0 km) </Td> <Td> 446,961 </Td> <Td> Located in Biscayne Bay, this park at the north end of the Florida Keys has four interrelated marine ecosystems: mangrove forest, the Bay, the Keys, and coral reefs . Threatened animals include the West Indian manatee, American crocodile, various sea turtles, and peregrine falcon . </Td> </Tr> <Tr> <Th> Black Canyon of the Gunnison </Th> <Td> </Td> <Td> Colorado 38 ° 34 ′ N 107 ° 43 ′ W ﻿ / ﻿ 38.57 ° N 107.72 ° W ﻿ / 38.57; - 107.72 ﻿ (Black Canyon of the Gunnison) </Td> <Td> 000000001999 - 10 - 21 - 0000 October 21, 1999 </Td> <Td> 7008124565316292353 ♠ 30,780.76 acres (124.6 km) </Td> <Td> 307,143 </Td> <Td> The park protects a quarter of the Gunnison River, which slices sheer canyon walls from dark Precambrian - era rock . The canyon features some of the steepest cliffs and oldest rock in North America, and is a popular site for river rafting and rock climbing . The deep, narrow canyon is composed of gneiss and schist which appears black when in shadow . </Td> </Tr> <Tr> <Th> Bryce Canyon </Th> <Td> </Td> <Td> Utah 37 ° 34 ′ N 112 ° 11 ′ W ﻿ / ﻿ 37.57 ° N 112.18 ° W ﻿ / 37.57; - 112.18 ﻿ (Bryce Canyon) </Td> <Td> 000000001928 - 02 - 25 - 0000 February 25, 1928 </Td> <Td> 7008145019423645217 ♠ 35,835.08 acres (145.0 km) </Td> <Td> 2,571,684 </Td> <Td> Bryce Canyon is a geological amphitheater on the Paunsaugunt Plateau with hundreds of tall, multicolored sandstone hoodoos formed by erosion . The region was originally settled by Native Americans and later by Mormon pioneers . </Td> </Tr> <Tr> <Th> Canyonlands </Th> <Td> </Td> <Td> Utah 38 ° 12 ′ N 109 ° 56 ′ W ﻿ / ﻿ 38.2 ° N 109.93 ° W ﻿ / 38.2; - 109.93 ﻿ (Canyonlands) </Td> <Td> 000000001964 - 09 - 12 - 0000 September 12, 1964 </Td> <Td> 7009136620994652380 ♠ 337,597.83 acres (1,366.2 km) </Td> <Td> 742,271 </Td> <Td> This landscape was eroded into a maze of canyons, buttes, and mesas by the combined efforts of the Colorado River, Green River, and their tributaries, which divide the park into three districts . The park also contains rock pinnacles and arches, as well as artifacts from Ancient Pueblo peoples . </Td> </Tr>

States that do not have a national park