Step House, Mesa Verde
Step House.
Mesa Verde National Park is a National Park and World Heritage Site located in Montezuma County, Colorado. It protects some of the best preserved Ancestral Puebloan archeological sites in the United States.

The park was created by President Theodore Roosevelt in 1906. It occupies 52,485 acres (21,240 ha) near the Four Corners region of the American Southwest, and with more than 4,300 sites, including 600 cliff dwellings, it is the largest archeological preserve in the US. Mesa Verde (Spanish for &quot;green table&quot;) is best known for structures such as Cliff Palace, thought to be the largest cliff dwelling in North America.

Starting c. 7500 BCE, Mesa Verde was seasonally inhabited by a group of nomadic Paleo-Indians known as the Foothills Mountain Complex. The variety of projectile points found in the region indicates they were influenced by surrounding areas, including the Great Basin, the San Juan Basin, and the Rio Grande Valley. Later, Archaic people established semi-permanent rockshelters in and around the mesa. By 1000 BCE, the Basketmaker culture emerged from the local Archaic population, and by 750 CE the Ancestral Puebloans had developed from the Basketmaker culture.

The Mesa Verdeans survived using a combination of hunting, gathering, and subsistence farming of crops such as corn, beans, and squash. They built the mesa's first pueblos sometime after 650, and by the end of the 12th century they began to construct the massive cliff dwellings for which the park is best known. By 1285, following a period of social and environmental instability driven by a series of severe and prolonged droughts, they abandoned the area and moved south to locations in Arizona and New Mexico, including Rio Chama, Pajarito Plateau, and Santa Fe.

This multi-storied ruin, the best-known cliff dwelling in Mesa Verde, is located in the largest alcove in the center of the Great Mesa. It was south- and southwest-facing, providing greater warmth from the sun in the winter. Dating back more than 700 years, the dwelling is constructed of sandstone, wooden beams, and mortar. Many of the rooms were brightly painted. Cliff Palace was home to approximately 125 people, but was likely an important part of a larger community of sixty nearby pueblos, which housed a combined six hundred or more people. With 23 kivas and 150 rooms, Cliff Palace is the largest cliff dwelling in Mesa Verde National Park. 
Cliff dwelling. The Anasazi (&quot;Ancient Ones&quot;), thought to be ancestors of the modern Pueblo Indians, inhabited the Four Corners country of southern Utah, southwestern Colorado, northwestern New Mexico, and northern Arizona from about A.D. 200 to A.D. 1300, leaving a heavy accumulation of house remains and debris.
stephouse mesaverdenationalpark colorado