Logsdon River

Logsdon River has been explored upstream from the confluence for more than seven kilometers. It more or less parallels the escarpment at the southern edge of the Mammoth Cave Plateau and is a master drain for the karst as far northeast as Roppel Cave. It is known to receive recharge from valley drains and vertical shafts and also from the sinking streams and sinkhole inputs on the Sinkhole Plain to the southeast. The Logsdon River sediments are mainly silts and fine sands with 40 - 60% of the material smaller than the smallest sieve size used. 

Figure 7. Sketch showing sapling locations at tfie confluence of Logsdon River and Hawkins River, M nmodi Cave, Kentucky. The PVC pipe is a test well used for hydrologic measurements.

Figure 8. Particle size distribution in Hawkins and Logsdon Rivers. Logsdon River diamonds = site 1 asterisks = site 5 open circles = site 4. Hawkins River solid square = site 2 triangles = site 3.

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