Mushrooms in Grand County, Colorado
Fruiting now
Based on past sightings (mostly since 2011; all years where recent records are few), not a forecast. Weather and place matter a lot, and a listing here says nothing about whether a mushroom is safe.
Usually recorded in January here:
Funnel Chanterelle Craterellus tubaeformis2 January records since 2011
Too few past records in February here to list species.
Too few past records in March here to list species.
Too few past records in April here to list species.
Too few past records in May here to list species.
Usually recorded in June here:
- Disciseda subterranea2 June records across all years
- Tyromyces leucospongius2 June records across all years
Orange Sponge Polypore Pycnoporellus alboluteus2 June records across all years
Mycena overholtsii2 June records across all years
Giant Lentinus Neolentinus ponderosus2 June records across all years
Conifer Mazegill Gloeophyllum sepiarium2 June records across all years
Usually recorded in July here:
- Orange Sponge Polypore Pycnoporellus alboluteus4 July records across all years
Purple-Staining Milk Cap Lactarius uvidus3 July records across all years
Saffron Milk-Cap Lactarius deliciosus3 July records across all years
Infundibulicybe squamulosa3 July records across all years
Orange Moss Navel Rickenella fibula3 July records across all years
Fly Agaric Amanita muscaria3 July records across all years
Grey Puffball Bovista plumbea2 July records across all years- Conifer Mazegill Gloeophyllum sepiarium2 July records across all years
Spring Polypore Lentinus arcularius2 July records across all years
Fuzzy Foot Xeromphalina campanella2 July records across all years- Stump Puffball Lycoperdon pyriforme2 July records across all years
- Loreleia postii2 July records across all years
Usually recorded in August here:
Short-Stalked Suillus Suillus brevipes28 August records since 2011
Blue-Staining Slippery Jack Suillus tomentosus27 August records since 2011- Fly Agaric Amanita muscaria18 August records since 2011
Suillus occidentalis9 August records since 2011- Saffron Milk-Cap Lactarius deliciosus8 August records since 2011
Blotched Woodwax Hygrophorus erubescens8 August records since 2011
Corn-Silk Fiberhead Pseudosperma sororium6 August records since 2011
Truncated Club Clavariadelphus truncatus6 August records since 2011
Deadly Galerina Galerina marginata5 August records since 2011
Cluster Cap Connopus acervatus5 August records since 2011
Scaly Tooth Sarcodon imbricatus5 August records since 2011
Ruby King Bolete Boletus rubriceps5 August records since 2011
Usually recorded in September here:
Giant Club Clavariadelphus pistillaris5 September records across all years
Ochre Club Clavariadelphus ligula4 September records across all years
Red Hot Milk Cap Lactarius rufus3 September records across all years
Chanterelle Cantharellus cibarius2 September records across all years- Truncated Club Clavariadelphus truncatus2 September records across all years
Shaggy Pholiota Pholiota squarrosa2 September records across all years
Frosty Funnel Clitocybe phyllophila2 September records across all years- Conifer Mazegill Gloeophyllum sepiarium2 September records across all years
Too few past records in October here to list species.
Usually recorded in November here:
- Agaricus cuniculicola2 November records across all years
Too few past records in December here to list species.
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 30 | |
| 2 | 28 | |
| 3 | 26 | |
| 4 | 12 | |
| 5 | 12 | |
| 6 | 12 | |
| 7 | 10 | |
| 8 | 9 | |
| 9 | 9 | |
| 10 | 9 | |
| 11 | 9 | |
| 12 | 8 | |
| 13 | 8 | |
| 14 | 8 | |
| 15 | 8 |
Being on this list doesn't mean a mushroom is common, easy to identify or safe. It only means it has been recorded here often.
Best months to look
Records by month, all years. Busiest: Aug, Jul, Sep.
Sightings map
● Each dot is a place with at least one record (rounded to about 1 km). Locations can be approximate, and many are on private land. Numbered blue circles are recent sightings, shown only to a general area of about 10 km.
Recent sightings
The 10 most recent dated records in this county, newest first. Data as of October 26, 2026. Records can take weeks or more to reach GBIF, so the newest finds may not show yet. Places are given only as a public park or forest (from the USGS Protected Areas Database) or the nearest town, and the numbered circles on the map cover a general area, not an exact spot.
- 1Aug 29, 2026Fly Agaric Amanita muscariain Rocky Mountain National Park, CO · iNaturalist photo, research grade · original record
- 2Jun 9, 2026Conifer Mazegill Gloeophyllum sepiariumin Rocky Mountain National Park, CO · iNaturalist photo, research grade · original record
- 3
Oct 5, 2025Lawyer's Wig Coprinus comatusnear Grand Lake, CO · iNaturalist photo, research grade · original record - 4Sep 3, 2025Mycetinis applanatipesin Arapaho National Forest, CO · iNaturalist photo, research grade · original record
- 5Sep 3, 2025Galerina angustifolianear Winter Park, CO · iNaturalist photo, research grade · original record
- 6Jun 10, 2025Conifer Mazegill Gloeophyllum sepiariumin Grand County, CO · iNaturalist photo, research grade · original record
- 7Sep 28, 2024Conifer Mazegill Gloeophyllum sepiariumin Arapaho National Forest, CO · iNaturalist photo, research grade · original record
- 8Sep 28, 2024Conifer Mazegill Gloeophyllum sepiariumin Arapaho National Forest, CO · iNaturalist photo, research grade · original record
- 9Sep 6, 2024Ochre Club Clavariadelphus ligulain Arapaho National Forest, CO · iNaturalist photo, research grade · original record
- 10Sep 6, 2024Shaggy Pholiota Pholiota squarrosain Arapaho National Forest, CO · iNaturalist photo, research grade · original record
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How we built this page
1,255 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 1,163 CC0 and 92 CC BY 4.0. See about the data for the full citation.