
The mission of the Hill Country Alliance is to bring together a diverse coalition of partners to preserve the open spaces, starry night skies, clean and abundant waters, and unique character of the Texas Hill Country.
Our Work
Land
The Texas Hill Country region covers over 11 million acres in 17 counties of mostly privately held land.
Water
Thirteen Texas rivers begin in the Hill Country and provide water for millions of downstream neighbors.
Night Sky
The Hill Country sits on the edge of night and as development pushes westward, we are losing our view of the night sky.
Community
90% of Hill Country lands are in unincorporated areas where there is little authority to plan for growth.
Latest News

Nirenberg: City Reviewing ‘Pandora’s Box’ of Impervious Cover Policies
The convergence of dialogue, data, and disaster have sparked a more serious look at regulations that impact water management and development in San Antonio, Mayor Ron Nirenberg said Monday. Revisions to the City’s impervious cover policies will likely add to the...
Ahead of the curve
Hill Country stakeholders proactively create Upper Llano River Watershed Protection Plan. Composed of the North and South Llano rivers, the Upper Llano River is known as a Hill Country treasure. Its near-pristine flows provide a healthy ecosystem supporting a variety...
Reforestation Experts Help Restore a Wild Blanco River
Each week, Ina Alexatos drives throughout Wimberley in a Subaru Forester with the words Trees for the Blanco printed across the side. She visits riverside landowners one by one to consult them on letting their banks go wild. She then stakes orange flags to mark where...

Flood Models Show Olmos Dam Would Overflow in Harvey-like Storm
A direct hit by a hurricane of Harvey’s magnitude would cause catastrophic flooding that would flow over the Olmos Dam and emergency spillway by four feet and inundate portions of U.S. Highway 281 for approximately 12 days, according to models released by the San...

McDonald Observatory works with energy companies to stop light pollution
The McDonald Observatory, often called the “Crown Jewel of the University of Texas,” monitors the night sky in the Davis Mountains. On a clear night, the entire Milky Way is visible from the observatory’s telescopes and the naked eye. However, the stars at night have...

Festival Brings Together Good Things to Know and Fun Things to Do
The Hill Country Alliance brings its eighth annual Rainwater Revival + Hill Country Living Festival to the Dripping Springs Ranch Park on Saturday, November 4. The Festival is a combination of fun things to do, like live music, wine tasting, food trailers, tiny...

Cindy Luongo Cassidy honored with International Dark-Sky award
The International Dark-Sky Association has recently recognized U.S. and international dark sky heroes for their contributions to combating light pollution. The 2017 award winners include the pioneer of the China Biodiversity Conservation and Green Development...










