The centerpiece of Mesa Verde National Park, Cliff Palace was discovered in the late 1800s. Park archaeologists noticed a small crack in the masonry and then discovered the north wall was leaning precariously into the structure.
Research derived from ponderosa pine forests in the Southwest indicates that while low-severity surface fires are common historically, today’s large-scale forest fires are enabled by fire-suppression efforts and other human activities.
The benefits of releasing captive-bred Mexican wolves into the wild include support of wolf reintroduction efforts in the Southwest and ecosystem balance, groups say.
A report focusing on agricultural, urban and environmental water use in the West suggests several ways to share and transfer water among traditionally competing interests.
An unusually dry year or sustained drought would mean unstable and variable water deliveries for a system that relies on the huge reservoirs Lake Mead in Arizona/Nevada and Lake Powell in Arizona/Utah.