About Pompeys Pillar National Monument and Visitor Center
Plan Your Visit Visit the Monument and climb the boardwalk to the top of the pillar, learn about the Lewis and Clark expedition and more at the Visitor Center, and enjoy the picturesque riverside grounds and trails. Hours and Seasons For the 2026 season, we will open on 01 May 2026 and close on 01 October 2026 (so, our last day of operation for the 2026 season will be 30 September 2026). Monument gates are open 8:00 am - 4:00 pm daily, except Tuesdays when the Monument is closed for maintenance. Monument gates open each day at 8:00 am, and the vehicle entrance gate closes at 3:30 pm, while the vehicle exit gate and the Interpretive Center close at 4:00pm. This ensures that if you arrive at 3:29pm by vehicle, you have at least 30 minutes before needing to depart. The Monument and the adjoin
Things to do
When to go
Weather data & source
Each figure averages the highlighted months. 2018–2023 averages, not a forecast. Wet days estimate days with at least 1 mm of rain or snow using a calibrated ERA5 threshold. Contains modified Copernicus Climate Change Service information. Weather data by Open-Meteo.com (AWS Open Data, CC BY 4.0). ERA5 via Open-Meteo AWS Open Data
Plan your visit
Pompeys Pillar National Monument and Visitor Center is managed by Bureau of Land Management. Check current conditions, permits, and reservations before you go.
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