Mean Elevation by County (Colorado)

zonal-analysis easy USGS SRTM 30m + US Census TIGER Counties

Ground Truth

2770
meters
10.0%
Tolerance
3
Runs
3
Passed

Calibrated from GEE execution on 2026-03-29 (actual: 2769.3m). Will be validated against QGIS and folia outputs. Mean of mean elevation for Boulder, Clear Creek, and Gilpin counties, CO. Variation expected from zone boundary rasterization method and DEM void fill differences.

Run Results

Workflow Model Backend Status Answer Error Cost Latency
exec gold gee PASS 2769.2875921409086 0.7% $0.000026 460ms
exec gold folia-rust PASS 2488.578165690104 10.2% --- 24ms
exec gold qgis PASS 2487.5 10.2% --- 300ms

Requirements

Data Sources
  • USGS SRTM 30m
  • US Census TIGER County Boundaries
Operations
zonal_stats

LLM Prompt

The prompt given to LLMs in single-shot workflow benchmarks.

Problem: Compute mean elevation for Boulder, Clear Creek, and Gilpin
counties in Colorado using SRTM 30m elevation data. Report the mean
of the three county mean elevations.

Data: SRTM 30m + US Census TIGER county boundaries.
Counties: Boulder (FIPS 08013), Clear Creek (08019), Gilpin (08047).
Expected answer: approximately 2770 meters.