The endangered plant grows only in a two-mile stretch of the upper San Marcos River and has a captivating, otherworldly ...

In its heyday, San Marcos welcomed throngs of tourists and celebrities to its watery amusement park known as Aquarena Springs, where bikini-clad “aquamaids” would perform underwater shows for ...

RANGE: Comal Springs riffle beetles are known from three spring runs at Comal Springs in Landa Park, as well as San Marcos Springs, 20 miles to the northeast. MIGRATION: This beetle has not been known ...