Loading conditions…
Loading conditions…
4,000–8,500 ft · MT🚗 Directions
Helena NF, Big Belt and Little Belt Mountains. Mixed Douglas fir and lodgepole pine. Good king bolete habitat at mid-elevations. Drier continental climate than western MT.
Updated May 29, 4:02 AM MT
**Helena / Big Belts – Tier A (Late May flush window)** Soil temps have crossed the 61°F threshold and moisture averaging has stabilized just barely above critical, which is pushing four polypores and both morel types into play—but this is a narrow window. The real story is desiccation risk: you're sitting at 0.16 VWC with only 0.63" rain in the last week and SWE collapsing to 4% of normal. Spring King Boletes, Chaga, and Red-Belted Conks are your safest bets because they're woody/perennial and don't require sustained ground dampness; True Morels are marginal (go subsurface and around seep areas); False Morels will flush but vanish fast. The accelerating melt trend is working against you—another dry day or two and the soil window closes for the season. Watch for any mid-elevation (6,000–7,000 ft) moisture pockets tied to north-facing slopes and ephemeral wet ground; that's where your Morels will concentrate if they fruit at all. **Hot tip:** Scout now for Chaga on high-elevation birch stands above 7,000 ft on north aspects—the snowmelt window is closing and late-season competition drops dramatically once June heat locks in.
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.
Helena-Lewis and Clark National Forest
⚠ 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.
0.63"
PRISM 4km · thru 05-27
Precip 14d
Observed precipitation from PRISM 4km gridded analysis, sampled at the region centroid through 2026-05-27. Used when no SNOTEL/SCAN station is mapped to this region.0.86"
PRISM 4km · thru 05-27
Soil Temp
62°F
SWE
Snow Water Equivalent — how much water is in the snowpack vs. normal. Declining SWE means snowmelt is adding moisture to the soil.4%
Drought
None
Snowmelt
accelerating
moisture marginal (today 0.16 VWC, 7d avg 0.18)
All conditions met (soil 62°F, sustained 7/7 days above threshold, today 0.16 VWC, 7d avg 0.18)
All conditions met (soil 62°F, sustained 7/7 days above threshold, today 0.16 VWC, 7d avg 0.18)
All conditions met (soil 62°F, sustained 7/7 days above threshold, today 0.16 VWC, 7d avg 0.18)
All conditions met (soil 62°F, sustained 7/7 days above threshold, today 0.16 VWC, 7d avg 0.18)
All conditions met (soil 62°F, sustained 7/7 days above threshold, today 0.16 VWC, 7d avg 0.18)
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.