Everything about The Jemez Mountains totally explained
The
Jemez Mountains ('heɪmez) are a group of volcanic
mountains in
New Mexico,
United States. The highest point in the range is
Chicoma Mountain (also spelled as Tschicoma or Tchicoma) at an elevation of 11,561 feet (3524 meters). The town of
Los Alamos and
Los Alamos National Laboratory adjoin the eastern side of the range, while the town of
Jemez Springs is to the west.
Pajarito Mountain Ski Area is the only ski area in the Jemez.
The Jemez Mountains are a classic example of intracontinental
volcanism and consist of a broadly circular ridge surrounding the famous
Valles Caldera, actually a collection of at least two and possibly more distinct
caldera features. The most recent known
eruption was a
basalt flow dated to 50,000 to 60,000 years before the present; however, most of the volume of the range is composed of
rhyolite. The two most recent caldera-forming eruptions, dated to about 1.4 million and 1.1 million years ago, produced massive
ignimbrite deposits known as the Otowi and Tshirege members, respectively, of the Bandelier
Tuff. Much of the material in these deposits now forms the
Pajarito Plateau, a scenic region of
canyons and
mesas on which Los Alamos is situated.
Redondo Peak, the second highest summit in the range at 11,254 ft (3431 m), is a
resurgent dome in the middle of the Valles Caldera, which also contains several smaller domes. The caldera is segregated by these domes and its rim into multiple lush grass valleys (
valles in Spanish, hence the name).
Much of the range is federal land, including
Santa Fe National Forest,
Bandelier National Monument, and the
Valles Caldera National Preserve. Hiking trails crisscross the range and lead to many of the summits, although some regions are closed to hikers either because of environmental restrictions or because they're on the territory of
Santa Clara Pueblo or private land holders. The summits are generally easy to climb (in good weather) and require no technical-climbing skills, but
rock climbing is popular on some of the basalt cliffs near Los Alamos and elsewhere in the range. The mountains also are home to Pajarito Mountain, a small downhill
ski area and offer some opportunities for
cross country skiing, although not every winter produces enough snow to support this recreational activity. The region is prone to
forest fires because of the tendency for spring weather to be dry and windy, creating conditions under which fires caused by human activities or lightning can spread rapidly. The
Cerro Grande Fire in the year
2000 burned over 40,000 acres (160 km²) of forest and destroyed hundreds of homes in Los Alamos. Parts of Los Alamos National Laboratory were also damaged, although none of the laboratory's
special nuclear materials (
plutonium,
uranium, etc.) were threatened or released.
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