Far from the capital, and a three-day walk from the nearest road in the town of Syabrubesi, there is not much government activity in Langtang.
Mr Lama is not waiting for handouts. "We Langtangpas have got to help ourselves to rebuild as soon as we can. We need the tourists to come. If Langtang rises again, we hope that it will galvanise the whole nation to stand up for itself as it will symbolise hope for the future."
About 4 per cent of largely rural Nepal's gross domestic product comes from tourism. It provides one of the world's poorest countries with 3.5 per cent of its jobs.
In Kathmandu, where dozens of historic Unesco architectural sites were damaged, tourists are trickling back. Hotel operators say occupancy this month is only about 60 per cent of a normal April when the spring hiking season is at its peak.
"The government is rebuilding - a few sites are already built and a few are being built (and) will be completed in one to three years," said Nepal Tourism Board CEO Deepak Raj Joshi.
But tour operators say their businesses are unlikely to fully recover this year. "When you lose 85 per cent of your business... basically that's 85 per cent of your cash flow that's gone," said Mr Ashok Pokharel, president of the Nepal Association of Tour Operators.
Climbers have been reticent too, with the number getting permission to scale Mount Everest in the spring window down to 289 from last year's 357.
An avalanche triggered by the quake tore through Everest base camp last year, killing 18 people.
Few visitors have returned to Langtang, despite cleared trails and a handful of new or restored guest houses. Barely 40km from Kathmandu, a bus ride will take eight hours to reach the trail head in Syabrubesi. From there, it is a long, rough walk up the valley, gaining 2,000m in altitude in three days to finally reach Langtang village.
For survivor Chhemay Lama, 16, the tragedy unfolded as he sat at a kitchen stove with his uncle and three tourists. A student in Kathmandu, he was back in Langtang village on vacation.
There was a thundering roar and everything went dark with ash and dust, but he instinctively hid under a bed frame and a mattress - a scenario he learnt in school that would eventually save him.
The exact number of deaths in Langtang remains unknown - bodies were still being excavated as late as last month while many remain missing. Stories of loss are common in the village with 465 surviving residents. Madam Chiring Chopra, 44, who lost seven family members, is the first to open a new lodge, called New Langtang. It started operating late last month and received its first customers this month.
Langtang Valley is the third-most popular area for trekkers in Nepal after the Everest and Annapurna regions. About 15,000 make it there each year.
Passing through hamlets and villages, some abandoned, the chipping and hammering sounds of rebuilding could be heard. There was a sense of hurried expectation as the locals raced to get their lodges up and running again, but there was still no electricity or network for phones. The solar panels they rely on heavily had yet to arrive.
Trekking guide Chhime Lama, 24, said: "If word spreads that this place is safe to visit, trekkers will soon arrive and this place will be alive again. But first we need to rebuild the lodges for them to stay."
It is estimated that at least a fifth of the lodges outside Langtang village are running again but some can offer only drinks and simple food, and no accommodation for now. Lines of mule trains laden with food and supplies could be seen along the trail - a sign that life could eventually return to normal.
Not all villages are left to fend for themselves. Near Tamche, Christian Aid has installed a 10,000-litre tank and a pump to send water uphill to the village, where it built temporary shelters for 52 households, The Guardian reported.
•Additional input from Agence France-Presse
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