Bureau of Land ManagementBlackfoot River · Idaho
Sage Hen Flats Campground
This BLM managed site located along the Blackfoot River that has opportunities for fishing, camping, and non-motorized boating.
Sites0all reservable
Elev.5,912ft
Comf.May-Sep5 months
Max rigtents
Electricnonesites
From Idaho Falls1h56real 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 5,912 ft, Sage Hen Flats Campground has a 5-month comfortable window (May-Sep). Winter nights average around 15°F, so the shoulder seasons turn cold fast.
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.
88%
Of summer weekend-days are dry.
Jun 2
Last spring frost; first fall frost Oct 3.
56°F
Average July low. Bring a fleece.
Getting there
03 · ACCESS
01
Idaho Falls
55 mi
1h56
02
Boise
289 mi
5h31
03
Coeur d'Alene
538 mi
9h40
By drive time
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.