Green River — Desolation and Gray Canyons planning
Green River — Desolation and Gray Canyons trip planner
Pick your days, month and pace. The plan is built from the published route, the agency's seasonal windows and this destination's verified hazards and packing notes.
Season calendar
Green River — Desolation and Gray Canyons by month
Best months, permit windows and published seasonal conditions in one view. Every band comes from this destination’s verified agency sources — months with nothing published say so.
September
Best seasonIn the permit window- Autumn · September – October
- Moderate temperatures, stable lower flows and cottonwood color — many consider this the best window.
Permits
A BLM river permit is required year-round for Desolation and Gray Canyons. Peak-season launches (roughly May 1 – September 30) are allocated by lottery through Recreation.gov; off-season permits are available without the lottery.
Source: Recreation.gov — Desolation Gray permit · verified 2026-09-15
Itinerary wizard
Build your Green River — Desolation and Gray Canyons trip
Answer three questions and this builds a day-by-day frame from the published route, the agency's seasonal windows and this destination's verified packing and hazard notes.
Step 1 of 3