Mushrooms in Pitkin 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.
Too few past records in January here to list species.
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.
Too few past records in June here to list species.
Usually recorded in July here:
Crab Brittlegill Russula xerampelina5 July records since 2011
Bicoloured Deceiver Laccaria bicolor4 July records since 2011
Laccaria nobilis3 July records since 2011
Fly Agaric Amanita muscaria3 July records since 2011
Forest Lamb Albatrellus ovinus2 July records since 2011
Cryptic Globe Fungus Cryptoporus volvatus2 July records since 2011
Common Bird's Nest Crucibulum laeve2 July records since 2011
Aspen Bolete Leccinum insigne2 July records since 2011
Pale Oyster Pleurotus pulmonarius2 July records since 2011
Common Collybia Gymnopus dryophilus2 July records since 2011
Ruby King Bolete Boletus rubriceps2 July records since 2011
Aspen Oyster Mushroom Pleurotus populinus2 July records since 2011
Usually recorded in August here:
Saffron Milk-Cap Lactarius deliciosus3 August records since 2011
Hedgehog Fungus Hydnum repandum3 August records since 2011
Conifer Mazegill Gloeophyllum sepiarium3 August records since 2011- Bicoloured Deceiver Laccaria bicolor3 August records since 2011
- Lactarius payettensis2 August records since 2011
- Crab Brittlegill Russula xerampelina2 August records since 2011
Usually recorded in September here:
- Hebeloma corrugatum2 September records across all years
Too few past records in October here to list species.
Too few past records in November here to list species.
Too few past records in December here to list species.
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 18 | |
| 2 | 18 | |
| 3 | 13 | |
| 4 | 11 | |
| 5 | 11 | |
| 6 | 10 | |
| 7 | 10 | |
| 8 | 10 | |
| 9 | 10 | |
| 10 | 9 | |
| 11 | 8 | |
| 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.
- 1Jul 8, 2026Cryptic Globe Fungus Cryptoporus volvatusin White River National Forest, CO · iNaturalist photo, research grade · original record
- 2Aug 31, 2024Ruby King Bolete Boletus rubricepsnear Norrie, CO · iNaturalist photo, research grade · original record
- 3
Aug 28, 2024Pig's Ear Gomphus clavatusnear Norrie, CO · museum/herbarium specimen (DBG) · original record - 4Aug 28, 2024Leucogaster citrinusnear Norrie, CO · museum/herbarium specimen (DBG) · original record
- 5Aug 28, 2024Hysterangium separabilenear Norrie, CO · museum/herbarium specimen (DBG) · original record
- 6Aug 25, 2024Crab Brittlegill Russula xerampelinanear Norrie, CO · iNaturalist photo, research grade · original record
- 7Jul 2, 2024Fly Agaric Amanita muscariain White River National Forest, CO · iNaturalist photo, research grade · original record
- 8Jul 2, 2024Ruby King Bolete Boletus rubricepsnear Snowmass Village, CO (location blurred by the observer) · iNaturalist photo, research grade · original record
- 9
Aug 29, 2022Herald Of Winter Hygrophorus hypothejusin or near White River National Forest, CO · museum/herbarium specimen (DBG) · original record - 10
Aug 29, 2022Butter Cap Rhodocollybia butyraceain or near White River National Forest, CO · museum/herbarium specimen (DBG) · original record
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How we built this page
1,774 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 1,669 CC0 and 105 CC BY 4.0. See about the data for the full citation.