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9,000–11,700 ft · CO🚗 Directions
Mount Blue Sky Scenic Byway corridor — Echo Lake, Chicago Creek, and the upper Bear Creek drainages on the Front Range's highest fourteener massif. Engelmann spruce and subalpine fir from 9,000 ft to treeline, with lodgepole and aspen lower in Chicago Creek. Prime king bolete and hawk's wing habitat above 10,000 ft once monsoon moisture arrives; ancient bristlecone stands near Mount Goliath. Echo Lake SNOTEL sits right on the byway at 10,600 ft. Idaho Springs is the base town.
Updated Aug 27, 4:25 AM MT
**Mount Blue Sky / Echo Lake – S Tier Flash Window** This is a rare high-altitude convergence: sustained soil moisture (0.25 VWC 7-day average) meeting stable 51°F soil temps at 9–11.7k feet post-monsoon. You're looking at 30+ edible and choice species firing simultaneously—King Boletes and Hedgehogs are the marquee calls, but Lobster and Slippery Jack are equally locked in. The moderate desiccation risk is the only brake: late-August alpine air dries fast, so the 1.9" over 14 days is your window, not a baseline. The limiting factor is literally time. Once that soil drops below 0.20 VWC (which could happen within 3–5 days given altitude and September approach), fruiting collapses. Cauliflower, Reishi, and the stinkhorns are borderline—soil temp is 7–9°F below their floor—but won't fruit unless a secondary rain event spikes soil warmth. Watch the next 72 hours for any additional precip; if it stays dry, those species stay dormant. **Hot tip:** Target north-facing cirque drainages and seeps now—soil moisture persists longest there, and boletes will cluster where water pools before it evaporates at this elevation.
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
Log your find on iNaturalist to help the community and get expert ID assistance. Photos, location, and habitat notes all help with identification.
0.30"
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.1.90"
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.0%
Drought
None
Snowmelt
complete
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
soil temp marginal (51°F vs 58°F min, 0/7 days above), today 0.30 VWC, 7d avg 0.25 — moisture sustained
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
soil temp marginal (51°F vs 55°F min, 0/7 days above), today 0.30 VWC, 7d avg 0.25 — moisture sustained
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
soil temp marginal (51°F vs 55°F min, 0/7 days above), today 0.30 VWC, 7d avg 0.25 — moisture sustained
All conditions met (soil 51°F, sustained 7/7 days above threshold, today 0.30 VWC, 7d avg 0.25 — moisture sustained)
soil temp marginal (51°F vs 55°F min, 0/7 days above), today 0.30 VWC, 7d avg 0.25 — moisture sustained
soil temp marginal (51°F vs 60°F min, 0/7 days above), today 0.30 VWC, 7d avg 0.25 — moisture sustained
soil temp marginal (51°F vs 60°F min, 0/7 days above), today 0.30 VWC, 7d avg 0.25 — moisture sustained
soil temp marginal (51°F vs 55°F min, 0/7 days above), today 0.30 VWC, 7d avg 0.25 — 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.