Vision Dolpo: Field Study, Dho Tarap, October 2022

Mountain path along the Bheri River, approaching upper Dolpo — October 2022. A local family gathered around the hearth in a traditional stone home, lower Dolpo. Open-fire cooking with no chimney stack is the norm. Young women in a village en route to Dho Tarap. The track into upper Dolpo: motorcycle and passengers cross a river gorge below snow peaks. The road ends here; the rest is on foot. Two women outside a traditional mud-and-stone house, Dho Tarap. Walls are 600–800 mm thick dry-stacked rubble stone with no insulation layer. The survey team inside a smoke-darkened stone room. The smell of dung smoke and the near-zero temperature make the thermal problem immediately legible. Two children in thin clothes, Dho Tarap. The village sits at roughly 3,900 m; October nights drop to −10 °C or below. Carved mud-plaster ornament on a house façade — Dolpo vernacular craft using local river clay. Mud is also the primary thermal mass material. A classroom at Crystal Mountain School: wooden-beam ceiling, paper mobiles, a single small window. Interior temperatures in October rarely exceed 5 °C before mid-morning. A woman tending an outdoor hearth by a dry-stone wall. At this altitude firewood is scarce; dung and juniper are the primary fuels. Pre-dawn light on the Dho Tarap fields and snow peaks. The valley faces south-southeast — the orientation that makes passive solar viable here. Twilight over the Dho Tarap valley and river. The settlement is visible at lower left; the river runs along the valley axis. A woman sorting the harvest against a rubble-stone wall. Wind infiltration through dry-stacked cavities is a primary heat-loss path in traditional construction. A child plays in bright October sun outside a stone building. At 3,900 m, solar irradiance on a clear day exceeds 1,000 W/m² — the resource the passive solar strategy is built on. Dawn threshing: silhouetted figures work the grain harvest as the peaks emerge from shadow. The survey team worked alongside the harvest calendar. Students in unheated classrooms at Crystal Mountain School. Existing rooms have no south-facing glazing; they warm only after the sun clears the ridge — mid-morning at best. School students keep their jackets on inside class. Measured classroom temperatures hover 2–4 °C above ambient for most of the school day. A single south window lights a classroom. Daylighting and solar gain share the same aperture — the design problem in miniature. The Milky Way over Dho Tarap, prayer flags in silhouette. Low humidity and 3,900 m altitude give clear nights of exceptional transparency. Children running on the main track through Dho Tarap, snow peaks behind. Community members gathered at the monastery porch for a consultation session with the architects and engineers on the survey team. A follow-up meeting with a local family: discussing preferred room orientation, cooking arrangements, and what 'warm' would mean to them as a design brief. Sky and peaks reflected in a south-facing window pane. The aperture functions simultaneously as weather barrier and solar collector. Two children look in through a frost-hazed window. The temperature differential across a single-pane glass in October can exceed 20 °C. An elderly villager seen through the glass of a whitewashed building. The survey combined thermal measurement with structured household interviews. Community threshing wheat in the courtyard. The white passive-solar residential block visible in the mid-ground is a direct outcome of this field study — the first purpose-built passive solar structure in Dolpo. Children gathered around a scale model at a participatory design workshop held at the gompa. Layout preferences were tested before any drawings were committed. The path back through the lower-valley forest: misty, narrow, the altitude dropping fast. The field notebooks and thermal data came home with the team.