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Bog Prints, Northern Minnesota, 2008


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#1 SRA Andy

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Posted 07 April 2013 - 04:10 PM

Discuss the Bog Prints, Northern Minnesota, 2008 post.


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#2 SRA Andy

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Posted 07 April 2013 - 04:10 PM

SRA-Todd:

 

Don’t footprints left in bogs or swamps tend to disappear or get absorbed back into the terrain? If so, how long would a footprint last before going away?


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#3 SRA Andy

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Posted 07 April 2013 - 04:11 PM

Jim:

 

That is a question where the answer depends so much on each individual bog, swamp, time of the year, or even each year can effect the time it takes for a print to disappear. There are so many factors involved. Type of material making up the ground, thickness of that material, amount of moisture in that material, temperature, weight of the subject making the print. Speed of the subject can also play a role in the depth of the track as well. As well as the amount of rain during the time a track is visible can and will reduce the time it would be visible. So to answer your question it is hard to tell, and that’s why each situation needs to be evaluated to determine how long a track would stay compressed to determine how long ago the subject had past. Tracks in swamps and bogs in most cases will be very short lived versus tracks we would find in higher dryer ground. Very good question. The next time we find tracks in a swamp or bog we will do some testing to try to determine how long it has been there.


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#4 SRA Andy

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Posted 07 April 2013 - 04:11 PM

SRA Andy:

 

To comment on the prints at hand, the prints I followed deep into the bog had degenerated considerably by the time I came back out of the bog a few hours later.


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