Which countries does Loamcast cover?

Loamcast currently covers 81 territories across 33 European countries and the 48 contiguous US states. Each territory has its own road network data, coordinate system and, where available, official LiDAR elevation models. Field calibration has focused on Czechia so far, with structured testing expanding across other climates and seasons.

Is Loamcast free to use, and what are the limits?

The public website at loamcast.com is currently free. After registering, a user can save and monitor up to three GPX routes at the same time, with each route up to 350 kilometres long. Saved routes can send daily summaries or automated email alerts when a section of a planned route degrades to Muddy or High risk.

How accurate is Loamcast in practice?

Loamcast produces mathematical estimates from weather, terrain, soil, drainage and tree-cover data rather than physical inspections. A Dry section can still contain a puddle, and High risk does not automatically mean impassable. Loamcast avoids long-range seven to ten day surface forecasts where local rainfall data is not reliable enough, and the developer is expanding structured field testing across different climates before publishing universal accuracy metrics.

community Archives -

Loamcast: Is Your Trail Still Muddy After the Rain?

6 August 2026

the5krunner

Loamcast estimates whether each section of your GPX route is Dry, Wet, Muddy or High risk…