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500–1,200 ft · MO🚗 Directions
Rich bottomland hardwoods along the Missouri River corridor. Cottonwood, elm, and ash dominate floodplains. Dead and dying elms are morel magnets. Easy access from Columbia and Jefferson City. Morels emerge early here due to low elevation and river-warmed soils.
Updated Aug 27, 4:09 AM MT
**Missouri River Valley – S Tier / Late August Peak** You're looking at textbook convergence: sustained soil temps at 75°F, a full week above threshold, and moisture locked in at 0.23 VWC average. The 1.16" over two weeks isn't torrential, but it's consistent enough to keep the fruiting window open across an unusually broad spectrum. No limiting factors means every major ecological guild is firing—wood decomposers, mycorrhizal associates, sapotrophs, even the slime molds. This is rare late-summer saturation for the valley. Prioritize **Chicken of the Woods, Black Trumpets, and Hedgehogs** as your bread-and-butter targets; they hold quality longest and are hard to misidentify. Boletes and milk caps will fruit heavily but watch for bruising and insect pressure in the heat. The sheer diversity here means you're not competing against narrow phenology windows—use that to cherry-pick species by substrate preference rather than race-timing. No weather cliff in sight, but late August heat can spike volatile compounds; collect early morning before VWC starts dropping. **Hot tip:** Hit deadfall and decomposing hardwood *hard*—Chicken, Bear's Head, and Coral Tooth are at peak flush and will abort if temperatures stay this warm past early September.
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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Mark Twain National Forest
Mark Twain 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.
0.58"
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.1.16"
PRISM 4km · thru 08-25
Soil Temp
75°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 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — moisture sustained)
All conditions met (soil 75°F, sustained 7/7 days above threshold, today 0.21 VWC, 7d avg 0.23 — 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.