UpToWhere
Online viewshed calculator for terrain visibility and point-to-point line-of-sight analysis
The product is an online viewshed calculator that determines what terrain is visible from any location and whether two points have line of sight, using 30-meter elevation data corrected for earth curvature and refraction. It is for general consumers and individual users planning viewpoints, property assessments, or antenna placement who need terrain visibility analysis. It is delivered as a free web-based map tool with paid Pro and Studio tiers for extended range and exports.
Key features
- 360° viewshed mapping
- Single direction viewshed analysis
- Point-to-point line-of-sight check
- Elevation profile generation
- Terrain shadows and sun times
- True sunrise and sunset calculation
- Mountain peak identification
- Maximum and average visible distance
- Farthest visible point details
- Adjustable observer and target heights
- KML / KMZ export
- Unlimited viewshed radius (Pro)
- Priority processing queue