Blacktail Mountain — Snow Preservation
Matched OpenSkiMap ski area: Blacktail Mountain Ski Area (23 mapped runs, 4752 m of vertical drop analyzed).
Score version: ASPECT_V3_FIXED_COORDS · calculated Sep 27, 2026 · source: OpenSkiMap/OpenStreetMap
| Blacktail Mountain | |
|---|---|
| Snow Preservation Score (0=poor, 100=excellent) |
95 |
| Solar Exposure Score | 5 |
| Overall Confidence | GOOD |
| Aspect advantage ratio (actual ÷ neutral-baseline irradiance) |
0.665 |
| Mean fall-line bearing | 14.8° |
| Orientation alignment (0=scattered, 1=fully consistent) |
0.82 |
| Mean slope (mapped, weighted) | 15.3° |
| Ski-season irradiance actual vs. neutral baseline (kWh/m²/day) |
1.87 vs. 2.81 |
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.