Biscayne National Park Groundwater

Groundwater flow, originating from the Biscayne Aquifer underlying lower southeastern Florida and extending beneath Biscayne Bay, is the only source of drinking water for about three million people from Boca Raton to the Keys. Historically, many freshwater springs occurred along the shoreline of the Bay, but many of these springs have ceased flowing as a result of the hydrological changes and are now the sources for saltwater intrusion into the Biscayne aquifer. Data from Biscayne National Park Long-Term Hydrographic Project shows that groundwater is seeping onto offshore coral reefs on a tidal cycle. This information is particularly important because it demonstrates that groundwater linkage between onshore sources of freshwater and offshore fully marine coral reef ecosystems. The data strongly suggests that pollution pumped into freshwater coastal aquifers will ultimately impact offshore coral reefs via this groundwater connection.

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Featured Park
Rising above a scene rich with extraordinary wildlife, pristine lakes, and alpine terrain, the Teton Range stands monument to the people who fought to protect it. These are mountains of the imagination. Mountains that led to the creation of Grand Teton National Park where you can explore over two hundred miles of trails, float the Snake River or enjoy the serenity of this remarkable place.
Featured Wildlife
The pika is a close relative of the rabbits and hares, with two upper incisors on each side of the jaw, one behind the other. Being rock-gray in color, pikas are seldom seen until their shrill, metallic call reveals their presence.