USFSFlathead National Forest · Montana
Sylvia Lake Campground
Sylvia Lake Campground has 3 designated campsites.
Sites0all reservable
Elev.4,974ft
Comf.May-Sep5 months
Max rigtents
Electricnonesites
From Missoula4h53real road time
The honest read
Synthesized from
RIDB · Open-Meteo
OSM · OSRM
Updated 2026-05-27
RIDB · Open-Meteo
OSM · OSRM
Updated 2026-05-27
At 4,974 ft, Sylvia Lake Campground has a 5-month comfortable window (May-Sep). Winter nights average around 16°F, so the shoulder seasons turn cold fast. Within about 4 miles: 2 peaks, lake or river access.
The campground at a glance
01 · CHARACTER
Six axes, each scored relative to every other federal campground in the region: quiet (miles to a major road), cool (elevation), roomy (average site spacing), shade, RV-fit (longest rig), and how reservable it is. All six come from data, nothing hand-tuned.
When to go
02 · CLIMATE
avg highavg lowfrost-freedriest · Jul
May-Sep
Comfortable window: nights stay above 35°F, days below 90°F.
82%
Of summer weekend-days are dry.
Jun 12
Last spring frost; first fall frost Sep 27.
51°F
Average July low. Bring a fleece.
Getting there
03 · ACCESS
01
Missoula
163 mi
4h53
02
Helena
236 mi
6h04
03
Bozeman
351 mi
7h55
04
Billings
492 mi
10h16
By drive time
What's within four miles
05 · TRAILS · PEAKS · WATER
Trails & Peaks
Trail segments
10
Peaks
2
Water & Access
Lake / river access
yes
Method
We synthesize public data layers: RIDB and Recreation.gov facility and site records, Open-Meteo climate normals, OpenStreetMap roads, trails, and water, OSRM drive times, and USGS elevation. We take no bookings, no ads, and no paid placements. Independence is the entire point.