Fill in the Blanks FILL IN THE GAPS TRAILOnline version FILL IN THE GAPS HIKING, TRECKING.. by Ferran Riera Collell 1 rocks cut impressive trail circuit deeper canyon trekking river reliefs Gorges are smaller that form when a makes its way between the . b . When a is created , the is usually made in a way . c . The Nhubine Himal glacier has caused an crevasse of the same name . d . In the past , what is now a famous hiking was a trade route between Tibet and Nepal . e . The Annapurna , one of the most popular routes in the world , is part of the Annapurna Conservation Area .