0
Pull-thru
Bureau of Land ManagementDillion · Montana
Trapper Springs (MT)
Overview The Dillon Field Office is unable to make reservations for you.
Sites161 reservable
Elev.4,482ft
Comf.May-Oct6 months
Max rig60 ft
Electricnonesites
From Bozeman0h44real 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 4,482 ft, Trapper Springs (MT) has a 6-month comfortable window (May-Oct). Winter nights average around 22°F, so the shoulder seasons turn cold fast. 16 sites total: 1 reservable and 15 first-come, first-served. Within about 4 miles: 1 peak, lake or river access.
The campground at a glance
01 · CHARACTER
Reads strongest on cool nights and reservability. Softest on shade.
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-Oct
Comfortable window: nights stay above 35°F, days below 90°F.
85%
Of summer weekend-days are dry.
May 11
Last spring frost; first fall frost Oct 15.
59°F
Average July low. Bring a fleece.
Getting there
03 · ACCESS
01
Bozeman
28 mi
0h44
02
Helena
103 mi
2h03
03
Billings
172 mi
3h11
04
Missoula
187 mi
3h14
By drive time
Routed road time (OSRM). Nearest major highway 0.2 mi away.
Picking your site
04 · 16 SITES
Color byShow only
16 mapped sites · dot color = seclusion · click a dot for details. Basemap © OpenStreetMap.
0
Walk-in
0
50-amp
0
Accessible
0
Prime
16
Sites
★ The standout
Site 9
A · good location.
To neighbor
130 ft
Location
Good
Max rig
50 ft
Type
Standard
What's within four miles
05 · TRAILS · PEAKS · WATER
Trails & Peaks
Trail segments
8
Peaks
1
Water & Access
Lake / river access
yes
To nearest major road
0.2 mi
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.