- Aftersplittingupwiththeothertrappersin1807,Colterpassedthroughaportionofwhatlaterbecamethepark,duringthewinterof1807-1808.Overthenextfortyyears,numerousreportsfrommountainmenandtrapperstoldofboilingmud,steamingriversandpetrifiedtrees,yetmostofthesere...
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