Phosphate
- 4.2 mi
- round trip
- 1,664 ft
- climb
- 9,536 ft
- high point
- Out and back
- route
- Jun–Aug
- best months
Caution today
Agency alerts are in effect for this area; weather is good · USFS, OpenWeather · checked 3 h ago
Phosphate is a moderate out-and-back hike in the Greys River Ranger District of Bridger-Teton National Forest in Wyoming, managed by the Forest Service. The route is about 4.2 miles long, with a one-way elevation gain of 1,664 feet, taking you from a low point of about 7,872 feet to a high point of about 9,536 feet. The trail is on natural surface, and the Forest Service records show that both horses and bikes are allowed. The open season runs from May 1 to October 31. Summer is the most comfortable time to go. Typical averages from a nearby weather station show July highs around 72°F with lows near 35°F, and that station sits about 1,300 feet lower than the high point, so temperatures on the summit run cooler. Big Spring is about 0.8 miles away, and the Grayback Ridge South Bootpath and Grayback Ridge North Bootpath are each about 1.3 miles off. McCain Cabin, about 1.7 miles away, offers a place to stay.
Local outfitters
- Greys River Cove16 mi away
- The Virginian RV Park23 mi away
Not on Roamze yet. Their page has how to reach them.
- Big SpringHiking0.8 mi
- Grayback Ridge South BootpathHiking1.3 mi
- Grayback Ridge North BootpathHiking1.3 mi
McCain CabinCampingPhoto: Recreation.gov (RIDB) / public domain1.7 mi- Little Greys RiverCanoeing3.1 mi
- Willow CreekCanoeing5.1 mi
- East Table CampgroundCamping7.5 mi
- East Table Group CgCamping7.6 mi
Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)
- Grayback Ridge South BootpathHiking · ~2 min drive
- Phospate CreekHiking · ~4 min drive
- Blind Trail SpurHiking · ~8 min drive
- Grayback Ridge North BootpathHiking · ~2 min drive
- Old Hunter Creek TrailHiking · ~9 min drive
- Telephone Pass/Blind TrailHiking · ~10 min drive
- Horse Heaven TrailHiking · ~4 min drive
- Pickle PassHiking · ~9 min drive
- Cliff CreekHiking · ~11 min drive
- Mc Cain CreekHiking · ~6 min drive
Best time to visit Phosphate
Best months: June–August. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.
Jan
26° / -6°
9 wet
Feb
29° / -4°
9 wet
Mar
36° / 5°
10 wet
Apr
43° / 16°
10 wet
May
54° / 26°
11 wet
Jun
64° / 32°
10 wet
Jul
72° / 35°
8 wet
Aug
71° / 34°
9 wet
Sep
62° / 28°
8 wet
Oct
48° / 19°
8 wet
Nov
35° / 6°
9 wet
Dec
25° / -5°
10 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Darwin Rch, WY, 32.9 mi away at 8,190 ft. The station sits about 1,300 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
