The Wildland Almanac - California: a 30 m Landsat-derived time series of California wildland ecosystem properties across forests, shrublands, and grasslands; annual water years 1985–2025 (41 years). 18 properties spanning six themes - vegetation cover, hydrology, fire hazard, carbon, drought-driven dieoff risk, and disturbance severity. The Fire_LCP landscape is delivered as eight single-band COGs (fuel model, canopy cover, canopy height, canopy base height, canopy bulk density, plus static elevation, slope, and aspect). Created using a unified methodology that emphasizes temporal and cross-property consistency, to track change, explore tradeoffs, and support decision-making and scientific discovery. Cloud-Optimized GeoTIFFs with a STAC catalog. CC BY 4.0.