The Louis René Barrera Indiangrass Wildlife Sanctuary is a preserved wildlife sanctuary in northeast Austin, Texas, on the north shore of Lake Walter E. Long. Created in 1967 as part of Austin's network of conservation lands, it focuses on conserving native grasslands and wildlife while promoting the restoration of the Blackland Prairie. The Blackland Prairie ecoregion, one of the most threatened ecosystems in Texas, has less than 1% of its original area remaining because that rest was converted to row crops and pasture by European settlers.
Location
The sanctuary is located approximately 11 miles east of downtown Austin, Texas (TX 78724), on the north shore of Lake Walter E. Long and it's accessible through Blue Bluff Road and Lindell Lane.
The sanctuary is part of the larger Decker Tallgrass Prairie Preserve, a protected area known for its diverse ecosystems including grasslands, wetlands, and woodlands. These areas support a wide variety of native Texas plant and animal species and play a crucial role in preserving Texas' ecological legacy. The sanctuary is currently not open to the public and only accessible through guided tours.
History
The Louis René Barrera Indiangrass Wildlife Sanctuary is a special part of Austin's work to protect its natural areas. It is similar to the Indiangrass Preserve, a wetlands and grasslands restoration project in the Katy Prairie, which was completed in 2014 by the Coastal Prairie Conservancy. In 1966, the City of Austin expanded its steam turbine plant along Decker Road, which needed a steady water supply. To provide this, a new lake was created and filled with water in early 1967. The area around the lake was then set aside for parks and nature.
Over the years, the city developed multiple plans for the land, starting with the 1966 Decker Lake plan, followed by the 1968 Land Use Plan, and others in the 1970s. These plans included ideas for nature preserves and park facilities. However, the focus later shifted more toward conservation. This led to the creation of the Indiangrass Wildlife Sanctuary, later renamed after Louis René Barrera, who was a strong advocate for protecting nature and teaching people about the environment.
Today, the sanctuary plays an important role in conserving local wildlife and plants. It uses methods like controlled burns and removing invasive species to maintain a healthy habitat.
Commemoration and renaming of the Indiangrass Wildlife Sanctuary
From 1995 to 2018, Barrera served as an Environmental Conservation Information Specialist for the City of Austin. He was responsible for managing across fifteen parcels of the City's Nature Preserve program. Throughout his career, he received numerous achievements, including the Keep America Beautiful National Award and the Keep Austin Beautiful Award.
He was known mainly for his commitment in preserving native habitats. One of his main objectives was to educate people about the importance of conserving the natural world.
In 2019, following Barrera's death, Austin's Mayor Steve Adler decided to honour Louis Renè Barrera's legacy by renaming the Indiangrass Wildlife Sanctuary after him.
Barrera was remembered as the "consummate land manager and conservationist " who demonstrated real passion for environmental stewardship. In 2005 an article from the Austin Chronicle praised him: " the city of Austin is home to roughly one gazillion waxleaf ligustrum plants, and only one René Barrera". His legacy continues throughout the work of his volunteers and colleagues, who keep his vision for natural preservation.
Today the sanctuary serves as both a memorial to Barrera's work and a living classroom where visitors can learn about preserving Texas' natural heritage. Through many conservation programs the sanctuary, thanks to the help of workers and volunteers, is able to keep his mission alive.
Conservation efforts
Conservation efforts include the implementation of Leave No Trace principles, which encourage visitors to respect wildlife habitats and leave natural areas undisturbed for future generations. By following these principles, visitors are encouraged to take only memories and leave no physical traces behind.
In the early 2000s, city planners recognized the need to protect this area from urban development in Austin. The sanctuary has become an important place for wildlife conservation. The Coastal Prairie Conservancy works to preserve coastal prairies, wetlands, farms, and ranches to benefit both people and wildlife, supporting the Indiangrass Wildlife Sanctuary's conservation efforts. The Conservancy's work in the Katy Prairie, including the Indiangrass Preserve, demonstrates the importance of preserving coastal prairie ecosystems and promoting environmental education.
In 2005, one key method used to maintain the area was controlled burns. In the early 2000s, the sanctuary faced threats from invasive species like Wax-leaf ligustrum. The Austin Parks and Recreation Department, removed these species and ensured proper disposal to protect the sanctuary. The sanctuary was recognized for these environmental efforts and received local awards.
The sanctuary preserve significant portions of Post Oak Savannah ecosystem, featuring live oak trees and native wildflowers. The area includes a Riparian Forest along Barton Creek, that provides habitat for bird species such as herons and hawks.
In 2020, the wildlife sanctuary received a $20,000 investment as part of the APF's (Austin Parks Foundation) efforts to continue the removal of invasive species, applications of herbicide and prescribed fire reduction in woody species.
In the winter of 2023, the PARD (Austin Parks and Recreation Department) conducted prescribed burns at the sanctuary as part of their own land management program. These events were implemented to develop climate resilience and reduce wildfire risks in the area. As of September 2024, PARD planned three additional prescribed burns covering 332 acres at the sanctuary.In addition, the Louis René Barrera Indiangrass Wildlife Sanctuary has been part of the Austin Parks and Recreation Department for already 53 years, and its main focus is restoring the Blackland Prairie ecosystem. Acquired in 1967 alongside the creation of the Walter E.Long reservoir, the sanctuary has since been directed by PARD stewards. Furthermore, it serves the community by hosting volunteer activities, educational events, and research projects.
In the early start of 2023, illegal dumping near the area of the sanctuary created environmental hazard. The staff and volunteers, led by the environmentalist Matt McCaw, were able to clean up the areas, to maintain a safe and welcoming environment for nature and people.
Looking ahead, the sanctuary plans to expand its conservation projects, including the introduction of native plant restoration programs, habitat enhancement for local wildlife, and partnerships with local schools and organizations to promote environmental education. The goal is to continue building on its success and ensure the sanctuary remains a big part of Austin's natural heritage for future generations.
Geology Soil profile The clay-rich soil allows plants to grow healthier and more vigorous, in fact it has excellent water retention properties. Meaning they can hold moisture for longer periods and therefore the plants don't require frequent irrigation, which is a fundamental aspect given the location of the sanctuary in central Texas. Clay-rich soil provides dense and stable fundations for plant growth, and the clay prevent soil erosion. During the wetter months, the soil may preserve more water and create temporary pools that can support and attract both birds and amphibians, while in the drier months the moisture is used to sustain the plants population of the sanctuary.
The sanctuary has four main soil series, which are divided into eight specific soil types. These series involve Burleson, Ferris, Heiden, and Houston Black. All of these series fall under the Vertisol soil order, that are commonly found in Texas Blackland Tallgrass Prairies. Vertisols contain a lot of clay and noticeably change in size as they expand and shrink, demonstrating how the soil moves. When they get wet, they swell up, slow water movement and they lose a small amount of nutrients. They are also naturally highly fertile. Vertisols turn very hard when dry and become clingy when wet. This can cause big problems to heavy machinery getting stuck in wet conditions, and making the planting process quite challenging, except during a brief window when the seasons shift from wet to dry.
The clay-rich soil at the sanctuary is able to support a thriving community of microorganisms. These small organisms break down organic material, releasing nutrients into the soil. The very fine texture of the soil holds important nutrients like nitrogen and phosphorus, which plants need to be able to grow. Although the soil's compactness limits root spread, native plants with deep roots are well-adapted to these conditions. The clay keeps the soil warm at night, which helps plant roots and seeds grow better. Its compact nature prevents water and nutrients from sinking too deep, keeping them close to plant roots.
+Soil Types and Characteristics, Indiangrass Wildlife Sanctuary, 2024Soil TypeCoverageAcresSlope (%)Erosion LevelHouston Black gravelly clay (HoD2)35.1%112.62-8%ModerateHeiden gravelly clay (HgF2)20.7%66.68-20%ModerateHouston Black clay (HnB)14.2%45.51-5%ModerateFerris-Heiden complex (FhF3)12.4%39.98-20%SevereHouston Black clay (HnC2)6.3%20.23-5%ModerateHeiden clay (HeC2)2.1%6.83-5%ModerateHeiden clay (HeD2)1.8%5.95-8%ModerateBurleson gravelly clay (BtB)0.6%2.01-3%MinimalTinn clay (Tw)0.8%2.50-1%Frequently flooded
Climate Located outside the city of Austin, the Indiangrass Wildlife Sanctuary sits between the dry deserts of the American Southwest and the humid regions of the Southeast. Therefore, the climate, topography and vegetation of that area have characteristics from both regions. According to the Köppen Climate Classification, the sanctuary has a humid subtropical climate, which is characterized by longer and hotter summers, and short mild winters. Spring and fall seasons can range from warm to hot. Throughout the year of 2023, the sanctuary experienced 532.9 mm of rainfall.
Although located inland from the coast, the sanctuary is still affected by extreme weather. Hurricanes and tropical storms can indirectly impact the Austin area, bringing high winds, flooding, and significant damage. In 1980 EF0, EF1 and EF2 tornadoes spawned by Hurricane Allen caused over $250 million in damages in the areas around Austin. Examples of heavy flooding due to tropical storms and hurricanes include Tropical Storm Hermine (2010) that caused 156,5 mm of rainfall in September alone, and Hurricane Harvey in 2017, which caused 292,4 mm of rainfall and led to record flooding in the areas it affected.
Additionally due to the sanctuary's location, it lies within the uttermost southern periphery area called Tornado Alley. Even if tornadoes strike this area less frequently than others located farther north. The area also experiences supercell thunderstorms multiple times per year, they bring heavy rain, strong winds, and floods.
Temperatures + Average monthly maximum and minimum temperature, Indiangrass Wildlife Sanctuary, 2023 January February March April May June July August September October November DecemberAverage maximum temperature (°C) 18.95° 19.62° 23.61° 24.74° 29.01° 34.87° 37.67° 39.69° 35.97° 27.75° 20.14° 19.35°Average minimum temperature (°C) 7.12° 7.0° 12.8° 13.88° 19.18° 23.39° 24.81° 25.11° 23.47° 16.34° 10.52° 6.88°
Impact of climate change on temperature trends (1979–2023)