Flattop Mountain Trail
The Flattop Mountain Trail , also known as the Grand Trail or the Big Trail , was built in 1925 in Rocky Mountain National Park in the Larimer County portion of the U . S . state of Colorado . 
<triplet> Flattop Mountain Trail <subj> Larimer County <obj> located in the administrative territorial entity <triplet> Rocky Mountain National Park <subj> Larimer County <obj> location