has he discovered any other trail apart from the former one?
"The Pinhoti Trail is considered the realization of forester Benton MacKaye's original 1921 vision of a trail extending the length of the Appalachian Mountain chain, connecting several existing trails, and sprinkled with permanent camps and constructed to "stimulate every line of outdoor non-industrial endeavor," including recreation, recuperation, agriculture and study.
Benton MacKaye
"The Pinhoti Trail is considered the realization of forester Benton MacKaye's original 1921 vision of a trail extending the length of the Appalachian Mountain chain, connecting several existing trails, and sprinkled with permanent camps and constructed to "stimulate every line of outdoor non-industrial endeavor," including recreation, recuperation, agriculture and study. 
where does the appalachian trail start and where does it end It is a extension running northeast from Maine into New Brunswick and Quebec's Gaspé Peninsula, where it ends at Forillon National Park. what is this trail about? It is a marked hiking trail in the Eastern United States extending between Springer Mountain in Georgia and Mount Katahdin in Maine. who discovered this trail? Benton MacKaye what was his profession? He was an American forester, planner and conservationist.
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Benton MacKaye [SEP] Pinhoti Trail
"The Pinhoti Trail is considered the realization of forester Benton MacKaye's original 1921 vision of a trail extending the length of the Appalachian Mountain chain, connecting several existing trails, and sprinkled with permanent camps and constructed to "stimulate every line of outdoor non-industrial endeavor," including recreation, recuperation, agriculture and study. He hoped to spark a "back to the land" movement to relieve the ills of urban industrial life." https://www.bhamwiki.com/w/Pinhoti_Trail From the Pinhoti Trail Alliance. The PTA Facebook account has the most history and current trail conditions online.