Site is steep conifer-wooded slope in Bradshaw Mountains south of Prescott within ‘private island’ of development surrounded by National Forest. As north-south ridge afforded best site access – plus distant 270-degree-views north to Bill Williams Peak, east to snow-capped San Francisco Peaks and onto south-facing ridge-meadow toward Tower Mountain – the design was driven by climatic factors coupled with an economic / low-impact approach to constructing upon this fragile and difficult site.  The 1000SF cabin, an 80’ long x 16’ wide x 8’ high mill finish steel clad box, springs east-west from N-S ridge paralleling path of sun along a ‘railroad track of steel I-beams’ supported by ridge-top grade beam and hand-augured caissons further down steepest eastern slope. Spatial dialogue with small and large site features guided design including a footpath that hugs stand of scrub oak up to first 16’ x 16’ deck that focuses views to north/east, then south up thru Cabin entry / dining hall out toward sun deck and to the south light that highlights spine of N-S ridge with sundial forest shadows. Cabin interior is clad in 4’x8’ sheets of post-consumer-waste formaldehyde-free MDF to become a ‘honey lantern’ with warm glow of sunlight both day and night. Exterior cladding of steel / glass extends above / below the floor and ceiling planes allowing the planes of 4’x8’ MDF sheets in ‘spine-configuration’ to expand the small cabin outwards N-S-E-W into the landscape. The 4’x8’ module is utilized as the American equivalent of the Japanese ‘tatami’.