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8,000–11,000 ft · CO🚗 Directions
Central mountain zone between Front Range and Western Slope. Spruce-fir and aspen. Excellent king bolete habitat. Vail and Minturn as base towns.
Updated Aug 27, 4:04 AM MT
**Vail / Eagle County – S Tier Flash Window** You're sitting in a prime alpine window: 34 high-viability species across boletes, milk caps, corals, and amanitas are live right now. Sustained soil moisture (0.21–0.22 VWC over 7 days) combined with consistent 50°F+ temps has triggered the full slate. The bolete run is especially strong—Bay, Painted, Chicken-Fat, and Bitter are all firing. Lobsters and hedgehogs round out the trophy tier. Watch desiccation risk moderate; afternoon winds and sun exposure will accelerate dry-down, so hit north-facing slopes and understory before noon. The margin is razor-thin: another 0.3–0.5 inches of rain in the next 3 days locks this in; no rain and you drop to A tier by labor day. Soil temp is *just* above threshold; any cooling kills the marginal callers (Cauliflower, Reishi, Stinkhorns). Hot tip: Prioritize Painted and Chicken-Fat boletes on duff under conifers—they flush hard in this 48–54°F sweet spot and vanish fast once temps climb.
Generated by Claude (Anthropic) from the structured weather, soil, and phenology data on this page. The LLM can misread edge cases — treat this as a starting hypothesis, not a guarantee. Always verify conditions on the ground before committing to a long drive.
Precip 7d
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⚠ Road Access Notice
Always verify road access is public before following GPS directions to mountain areas. Many forest roads are seasonal, gated, or require 4WD. Dispersed camping follows USFS/BLM rules (typically 14-day limit). Check ranger district offices for current road and campground conditions.
0.41"
PRISM 4km · thru 08-25
Precip 14d
Observed precipitation from PRISM 4km gridded analysis, sampled at the region centroid through 2026-08-25. Used when no SNOTEL/SCAN station is mapped to this region.1.31"
PRISM 4km · thru 08-25
Soil Temp
51°F
SWE
Snow Water Equivalent — how much water is in the snowpack vs. normal. Declining SWE means snowmelt is adding moisture to the soil.10%
Drought
None
Snowmelt
steady
soil temp marginal (51°F vs 58°F min, 0/7 days above), today 0.22 VWC, 7d avg 0.21 — moisture sustained
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
soil temp marginal (51°F vs 55°F min, 0/7 days above), today 0.22 VWC, 7d avg 0.21 — moisture sustained
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.22 VWC, 7d avg 0.21 — moisture sustained)
soil temp marginal (51°F vs 55°F min, 0/7 days above), today 0.22 VWC, 7d avg 0.21 — moisture sustained
soil temp marginal (51°F vs 60°F min, 0/7 days above), today 0.22 VWC, 7d avg 0.21 — moisture sustained
Primordia readiness: Cold = mycelium dormant. Activating = soil warming, primordia building. Primed = 5+ sustained warm days at species threshold; fruiting imminent if moisture cooperates. Based on Schmidt 1983 / Mihail 2007.