Openings · last 7 days
0
Availability is not tracked here yet
Campsite Sniper does not currently hold availability data for Trillium. That is a gap in what Campsite Sniper tracks — it does not mean the facility is full, closed, or unavailable. Recreation.gov may well be showing open dates right now.
The site details and map below come from the public Recreation.gov record and are accurate. For current dates and to book, go to Recreation.gov.
01 · Detected Opening History · the openings record · file CS-232831
When Trillium reopens
Trillium's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
103
Openings · last 90 days
499
Weekday pattern
Detected openings by day of week · 90dTuesday accounted for the largest share of the openings Campsite Sniper detected. 300 of 499 openings detected in the last 90 days occurred on a Tuesday (60.1%), with Friday (97) and Monday (39) next in line.
Hour-of-day pattern
First detected by hour · local time · last 90 daysThe largest concentrations of detected openings were first detected during the 06:00 and 16:00 local-time hours. Those hours contained 361 of 499 detected openings (72.3%). Hours show when Campsite Sniper first detected each opening, in Pacific Time, not when the change was made upstream.
Lead-time profile
Days before stay date · percentilesHalf of the openings Campsite Sniper detected appeared at least 17 days before the stay date; the middle 50% land 15–20 days out. Set an alert if you want Campsite Sniper to monitor future openings.
Highest-churn sites
Most openings · 90d| Site | Openings | Share of all openings |
|---|---|---|
| PS1-Day Use | 48 | 9.6% |
| 044 | 13 | 2.6% |
| 039 | 12 | 2.4% |
| 037 | 11 | 2.2% |
Site PS1-Day Use had the most detected openings in the last 90 days: 48. One free watch covers every site here.
About Trillium
Overview
Trillium Lake Campground is a beautiful and popular campground not far from the quaint town of Government Camp. It provides spectacular views of majestic Mt. Hood, Oregon's highest point. The campground is well-known for its scenery and abundant recreational opportunities, as well as being a great, family-friendly place to camp.
Recreation
Boating, swimming and fishing are popular on 63-acre Trillium Lake. A small boat ramp is available within the campground and a larger ramp is available in the nearby day-use area. An accessible fishing pier is also available. Anglers cast for a variety of trout.
The 2-mile Trillium Shoreline Trail circles the lake, and parts of it are accessible. Visitors also enjoy hiking and biking on other trails in the vicinity. Tours of the area's historical sites are also popular.
Facilities
The campground offers dozens of single and double sites for tent and RV camping. Some first-come, first-served sites are available, as well as some fully accessible sites. Parking surfaces are mostly paved, but some are gravel.
Each site is equipped with a table and campfire ring with grill. Accessible vault toilets and drinking water are provided. An accessible picnic shelter is adjacent and can accommodate up to 30 people. Parking is available.
An accessible amphitheater within the campground can be reserved for day use and can accommodate up to 30 people. Educational programs are held on weekends throughout the summer.
Natural Features
The campground is located about 40 miles southeast of Portland, in the Mt. Hood National Forest. It sits alongside Trillium Lake at an elevation of 3,600 feet, and is nestled in a shady, mixed conifer forest that provides privacy between campsites.
50 monitored sitesRVs up to 95 ftNo hookups36 shadedWaterfrontLakefrontPets OKMax party 12
Getting there
From Portland, travel southeast on Highway 26 for about 40 miles. Turn right a mile east of Government Camp. Continue 2 miles to the campground entrance.
Mt. Hood, OR503-630-5721
CampingDay Use AreaFishingHikingHistoric & Cultural SiteInterpretive ProgramsSwimming Site
View on Recreation.gov ↗ Get directions ↗
02 · Field Photos · roll CS-232831 · facility
Photo gallery
Roll CS-232831 · Trillium · OR5 frames · facility
FAQ
How do I get a reservation at Trillium?
Online reservations for this facility, where offered, are made through Recreation.gov. Campsite Sniper has also detected 499 site openings here in the last 90 days, so further dates may appear. Pick a site or unit on the map to see its calendar, or set a free Campsite Sniper alert. You complete the reservation yourself on Recreation.gov.
Does Campsite Sniper book this facility for me?
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
How current is this availability data?
Campsite Sniper does not currently hold availability data for Trillium, so there is nothing to date here. That is a gap in coverage — it does not mean the facility is full or closed. Check Recreation.gov for current dates.
How often do new openings appear at Trillium?
Campsite Sniper detected 499 site-date openings here over the last 90 days, none in the last 7. A free alert watches around the clock and pings you the moment one appears.
Which day of the week had the most detected openings at Trillium?
Tuesday accounted for the largest share of the openings Campsite Sniper detected in the last 90 days: 300 of 499 (60.1%). Days reflect when Campsite Sniper first detected each opening, not when the change occurred upstream.
Which sites at Trillium fit a 35-foot RV?
14 of the 47 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 95 ft. 33 of those 47 sites have a recorded maximum length and 14 do not; they are not counted as fitting.
How far ahead of a stay do openings appear at Trillium?
Half of the openings Campsite Sniper detected appeared at least 17 days before the stay date; the middle 50% landed 15-20 days out. Campsite Sniper can monitor future changes for dates you select.
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