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Bogus Basin — Snow Preservation

Matched OpenSkiMap ski area: Bogus Basin Mountain Recreation Area (144 mapped runs, 13178 m of vertical drop analyzed).

Score version: ASPECT_V3_FIXED_COORDS · calculated Sep 27, 2026 · source: OpenSkiMap/OpenStreetMap

Bogus Basin
Snow Preservation Score
(0=poor, 100=excellent)
50
Solar Exposure Score 50
Overall Confidence GOOD
Aspect advantage ratio
(actual ÷ neutral-baseline irradiance)
0.834
Mean fall-line bearing 3.1°
Orientation alignment
(0=scattered, 1=fully consistent)
0.33
Mean slope (mapped, weighted) 15.0°
Ski-season irradiance
actual vs. neutral baseline (kWh/m²/day)
2.99 vs. 3.59

Terrain orientation (vertical-drop-weighted)

Each spoke is a compass direction; length is the share of mapped, snow-holding terrain facing that way. A tall, narrow rose means the mountain consistently faces one direction; a round, even rose means it's scattered across every aspect.