Location and surroundings
Old Blue Mountain belongs to the North American Cordillera, descending through the Intermountain West, Southwest Basins and Ranges, and Trans-Pecos Texas Ranges, down to its home range, the Glass Mountains. It is situated in Brewster County within the state of Texas, United States. Ranking as the highest of 6 named peaks in its range and the 80th highest of 2,094 named peaks in Texas, the mountain is surrounded by arid and rugged terrain characteristic of the region, featuring neighboring elevations and mesas that define the landscape of the local district.
Neighbouring peaks
The surrounding area features several nearby peaks and passes of varying elevations and distances from Old Blue Mountain:
- Robbers Roost (peak), 1,181 m, 11.1 km N
- Leonard Mountain (peak), 1,765 m, 12.0 km SE
- Bissett Mountain (peak), 1,665 m, 12.0 km W
- Cathedral Mountain (peak), 1,788 m, 12.4 km S
- Iron Mountain (peak), 1,607 m, 12.4 km S
- Cave Mesa (peak), 1,336 m, 16.7 km NE
- Pine Mesa (peak), 1,411 m, 18.5 km NE
- Wolf Camp Hills (peak), 1,476 m, 18.6 km E
The view from the summit
From the summit of Old Blue Mountain, several significant elevations within a 25-kilometre radius are visible across the surrounding landscape. The highest peaks within 25 km include Bird Mountain at 1,849 m located 22.3 km SW, Smith Peak at 1,745 m located 24.1 km SW, and Dugout Mountain at 1,573 m located 25.0 km SW. Further visible points to the west include Elam Mountain at 1,493 m at a distance of 24.1 km, House Mountain at 1,451 m at 22.4 km, and Cone Mountain at 1,413 m at 21.1 km away.
The range
Old Blue Mountain is part of the Glass Mountains, which form the narrowest tier of a broad range hierarchy spanning from the North American Cordillera through the Intermountain West and Southwest Basins and Ranges to the Trans-Pecos Texas Ranges. The Glass Mountains contain 6 named peaks in total, with Old Blue Mountain standing as the highest point of the range. The range itself is located entirely within Texas, United States, in North America.
Climate and weather
Climate figures for the summit and surrounding area are estimates derived from NASA POWER climate data covering the period from 2001 to 2007 and 2009 to 2020. At the summit elevation, temperatures are mild to warm, with the warmest month being June at about 23 °C and the coldest month January at about 5 °C. The mean temperature remains above freezing at the summit throughout all twelve months of the year. In the surrounding area, annual precipitation is about 350 mm, with July being the wettest month at about 50 mm and February the driest at about 10 mm. Common weather hazards in this arid region include high daytime temperatures, intense sun exposure, and sudden convective storms.
Best time to visit
The best time to visit Old Blue Mountain is influenced by the year-round mild temperatures at the summit, where mean monthly temperatures stay above freezing in every month from January through December. The surrounding area experiences drier conditions during the winter months, with February marking the driest period receiving about 10 mm of precipitation, making the cooler months favorable for outdoor activities. Conversely, visitors should be prepared for the wetter conditions of July, which averages about 50 mm of precipitation within the wider area.
Nature and wildlife
The landscape around Old Blue Mountain features sparse vegetation typical of the dry desert and semi-arid regions of Texas, including desert grasses, low shrubs, and resilient cacti adapted to receive only about 350 mm of annual precipitation. Wildlife inhabiting these rocky elevations and surrounding mesas generally includes reptiles, small rodents, birds of prey, and mammals such as mule deer and coyotes that can endure high summer temperatures and limited surface water sources.
Guides and organised ascents
While general hiking does not always require professional supervision, engaging a certified mountain guide is advisable for unfamiliar terrain and remote elevations. In the United States, visitors often turn to established national organizations and guiding companies for mountain activities. The national mountain guide association is the American Mountain Guides Association, which is a member of the IFMGA/UIAGM. The national alpine club is the American Alpine Club. Established guiding companies operating in the country include RMI Expeditions based in Ashford, Washington, and Exum Mountain Guides based in Moose, Wyoming, though visitors should check their specific offerings. Permit rules in the United States vary by land agency, with some peaks requiring climbing registration or permits ahead of time, such as Denali or Mount Rainier.
Safety and preparation
Ascending peaks of this height and terrain demands proper physical preparation, adequate water supplies, navigation tools, and sturdy footwear to handle the rugged environment of Brewster County. Weather conditions can change, and remote trails require self-reliance. In case of an emergency, the general emergency number in the United States is 911, which connects callers to dispatchers who alert the local search and rescue team, typically run by the county sheriff or a national park authority.
Interesting facts
Old Blue Mountain holds the distinction of being the highest of the 6 named peaks in the Glass Mountains. Rising to 1,886 metres, it is positioned as the 80th highest named peak in the state of Texas. The peak is situated in Brewster County and forms part of the broader Trans-Pecos Texas Ranges within the United States.
FAQ
What is the elevation of Old Blue Mountain? The elevation of Old Blue Mountain is 1,886 metres.Where is Old Blue Mountain located? It is located in Brewster County, Texas, United States, and forms the high point of the Glass Mountains.
What mountain range does Old Blue Mountain belong to? It belongs to the Glass Mountains, which are part of the Trans-Pecos Texas Ranges, Southwest Basins and Ranges, Intermountain West, and North American Cordillera.
What are the nearest peaks to Old Blue Mountain? The nearest named peaks include Robbers Roost, Leonard Mountain, Bissett Mountain, Cathedral Mountain, Iron Mountain, Cave Mesa, Pine Mesa, and Wolf Camp Hills.
How does Old Blue Mountain compare in elevation to its surroundings? As the highest of the 6 named peaks in the Glass Mountains, Old Blue Mountain stands higher than all of its immediate neighboring peaks in the range.
Is there water on the way to Old Blue Mountain? There are no reliable natural water sources listed along the routes, so hikers must carry sufficient water—typically 1.5 to 3 litres per person for a day trip depending on heat and length.
Are there huts on Old Blue Mountain? OpenStreetMap shows no huts or shelters near the top, so hikers usually plan the ascent as a day trip or carry their own tent.
Is there mobile phone coverage on Old Blue Mountain? Coverage around the summit depends on the operator and is patchy in valleys and behind ridges. Download maps before setting out; the emergency number 911 reaches rescue services over any available network.