Lake Wallula · Oregon
Overview Spillway Park is located on Lake Umatilla just downstream of McNary Lock and Dam in eastern Oregon on the Mid-Columbia River. Recreation The park provides two overlooks to watch McNary Dam, a volleyball court and access to the McNary Dam Wildlife Area trail system. Facilities Spillway Park offers one day-use group shelter with eight tables and two fire grills.
Sites at Spillway Park - Chinook Shelter (Or) are reserved through Recreation.gov. Sites here can be reserved in advance through the official system, and they are claimed fast — cancellations then trickle back all season, unannounced, at any hour of the day or night.
| Total sites | 1 |
|---|---|
| Site types | Group, Shelter |
| Hookups | Electric hookups at some sites |
| Location | Umatilla, OR |
| Book through | Recreation.gov |
| Official listing | Recreation.gov |
Because sites are booked months ahead, a steady share of reservations get cancelled as trips fall through. Each cancellation instantly returns that site and those nights to the official calendar — first-come, first-served, no waitlist, no announcement. Refreshing the booking page yourself, every few minutes for weeks, works in theory. In practice, the people who get these sites are the ones who hear about the opening first.
ItOpened scans the Recreation.gov calendar for Spillway Park - Chinook Shelter (Or) around the clock. When a site matching your dates and your vehicle opens, you get a text with a direct link to it. You book it yourself, in your own account, at the normal price. We never book, hold, or resell — your fee pays for monitoring, and openings are first-come, so speed is the whole game.
| Hood Park | Cancellation alerts available |
|---|---|
| West Park (Or) | Cancellation alerts available |
| Mcnary Beach - Sockeye Shelter (Or) | Cancellation alerts available |
Page data refreshed 2026-10-29. Site facts come from the official directory listing for Spillway Park - Chinook Shelter (Or); cancellation statistics come from our own scanning logs.