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Natural Bridge Spring

Natural Bridge Spring
Natural Bridge Spring./ R. Means, Wikimedia Commons / public domain

WorldBlue  In short

At the St Marks River Natural Bridge is an impressive karst window – Natural Bridge Spring. This is an opening, where can be seen an underground stream that flows towards the St Marks River Rise.

3 out of 10 stars 30.3%

GPS coordinates
30.2851 N 84.1472 W
Location, address
North America, United States, Florida, Leon County, near the junction of Natural Bridge Road and Jim French Road
Average discharge
4,191 l/s (2003-2006)

Map of the site

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WorldYellow In detail

A karst window at Natural Bridge of St. Marks River. Spring rises from the depth of some 9 m. The winding lake – a chasm in limestone cliffs – is some 410 m long and at its end the water goes into the underground again.

Some 330 m west from it is the sink of St Marks River, where it dives under the ground to reemerge some 950 m further south as St Marks River Rise. Also, the water, that is seen in the Natural Bridge Spring, goes towards the St Marks River Rise. Near the sink is also historic Natural Bridge Battlefield – a site of an important American Civil War battle.


  1. Kris Barrios, St. Marks River and Wakulla River Springs Inventory
    Leon and Wakulla Counties, Florida
    , Northwest Florida Water Management District, July 2006. Accessed on September 13, 2023.

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