Traditional Geocache

Log Jam

A cache by The Weasel Send Message to Owner Message this owner
Hidden : 9/23/2012
In Iowa, United States
1.5 out of 5
2 out of 5

Size: Size: small (small)

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Geocache Description:

This cache is placed along the newly created trail that passes through Thomas Park.


Log jams alter flow hydraulics, which control characteristics of scour and deposition. Thus, log jams become an important factor in the geomorphology of wooded streams and rivers.

Water is often impounded on the upstream side of a log jam, creating a pool. Water draining from this pool often creates a downstream "plunge pool". Decrease in water velocity in the pool often results in deposition of sand or gravel in the pool bottom. This may progress into "bar" formation.

Log jams also cause shifts in stream flow. They often redirect flow into former channels or spur creation of new channels.

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106 Logged Visits

Found it 103     Didn't find it 1     Publish Listing 1     Update Coordinates 1     

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Current Time:
Last Updated: on 2/18/2017 1:41:54 PM (UTC-08:00) Pacific Time (US & Canada) (9:41 PM GMT)
Rendered From:Unknown
Coordinates are in the WGS84 datum