Agency-listedUSFS · dispersedFreeRoad season: open (MVUM)

Slim Sam Rd 621 003

Drive-up · U.S. Forest Service · MT · 46.23005, -111.74916
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U.S. Forest Service lists this site. On most of their ground you can camp away from developed sites pretty much anywhere — so treat this as a known-good spot, not the only one allowed. The unit sets stay limits and how far off road and water you must be. What changes is conditions — roads, gates, closures, fire rules. Check those with the unit before you commit to the drive.
Nearest road on the Forest Service MVUM — Slim Sam Rd 621 003 · Helena-Lewis and Clark National Forest · MT

The nearest road on the Forest Service MVUM is FR 621 (Norris Gulch), 60 ft from the pin. The MVUM lists it as native material surface and maintenance level 2 – high-clearance vehicles.

Road season: open (MVUM) The MVUM lists FR 621 (Norris Gulch), 60 ft from the pin, open to passenger vehicles May 16 – Dec 1. That season ends after Dec 1.
MVUM record for FR 621 (Norris Gulch): “05/16-12/01” Read against the calendar on 2026-09-22; with JavaScript your browser re-checks it against today.

From the Forest Service's own Motor Vehicle Use Map roads layer (EDW, Clearinghouse refresh Aug 30, 2026), straight-line from the pin to the nearest mapped segment. The nearest segment is not necessarily the way in, a maintenance level is the agency's class and not a report on today, and a road's season is the road's — it is not a campground order. What the levels mean → What an MVUM is →

USGS topo — contours & terrain
USGS topographic map of Slim Sam Rd 621 003
Aerial — USGS / NAIP
Aerial image of Slim Sam Rd 621 003
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Weather outlook — at Slim Sam Rd 621 003
Loading the latest forecast…
Live NWS area forecast (~2.5 km grid, not elevation-corrected). Camp sits at 6,530 ft.
Fire & smoke — around Slim Sam Rd 621 003NIFC · AirNow
Checking active fires & air quality…
Active wildfires from NIFC (within ~50 mi); air quality from AirNow. Always confirm current fire restrictions with the managing office before you go.

Everything you need — measured from Slim Sam Rd 621 003 · Helena-Lewis and Clark National Forest · MT

▲ your camp. Rings are 15, 30 and 60 straight-line miles; bearings are approximate and roads run longer.
Nearest of each
  • FFuel12 mi
  • GGrocery12 mi
  • @Mail12 mi
  • HHardware13 mi
  • DDump23 mi
  • ShShower23 mi
  • MMechanic25 mi
  • +Urgent care26 mi
  • RxPharmacy27 mi
  • LLaundry28 mi
  • WWater28 mi
  • OOutfitter28 mi
  • EVEV fast charger29 mi
  • AAir-up40 mi
≤30 mi30–4545+water

The read: water is a real 28-mi drive, fuel & food sit about 12 mi out.

Not within 60 mi: Propane. Plan those before you head up.

One dot per need — the nearest of each kind, straight-line from camp. Places from OpenStreetMap (© OpenStreetMap contributors); the EV fast charger from the US DOE station locator. Open in Google Maps ↗

The site — Slim Sam Rd 621 003

Access
Drive-up
Land
U.S. Forest Service · dispersed
Elevation
6,530 ft
Ground slope
12.9% · noticeable
State
MT
Coordinates
46.23005, -111.74916
Cost
Free

Nearby & resupply — around Slim Sam Rd 621 003 · Helena-Lewis and Clark National Forest · MT (OpenStreetMap)

  • Water featurenone named within 1 mi (USGS NHD)
  • Nearest townRadersburg · ~6.1 mi
  • Rail & highwaynone mapped within 10 mi
  • Drinking waternone within 10 mi
  • Fuelcenex · ~12.5 mi
  • Propane / LPGnone within 31 mi
  • Dump station~23.2 mi
  • GroceriesBob's Supermarket · ~12.5 mi
  • PharmacyBergum Drug · ~26.9 mi
  • Hospital / clinicBillings Clinic Broadwater · ~12.8 mi
  • HardwareHardware Hanke · ~12.6 mi

EV charging — from Slim Sam Rd 621 003 · Helena-Lewis and Clark National Forest · MT — nearest public DC fast & Level 2 (US DOE station data)

Nearby restrooms — around Slim Sam Rd 621 003 · Helena-Lewis and Clark National Forest · MT — pit toilets, restrooms & rest areas (government data)

Coming out here — Slim Sam Rd 621 003 · Helena-Lewis and Clark National Forest · MT

Open Slim Sam Rd 621 003 elsewhere

Other camps near Slim Sam Rd 621 003

If this one is full, gated or washed out.

The unit that manages Slim Sam Rd 621 003

Stay limits, road closures and fire restrictions at Slim Sam Rd 621 003 are set by Helena-Lewis and Clark National Forest, not by the campsite — check there before you go.

Snow, and when this opens

The nearest automatic snow station is Tizer Basin at 6,880 ft, about 10 miles away. It sits about 350 ft higher than this camp, so treat it as a guide rather than a reading for this spot. We do not repeat a depth here, because any number we stored would be stale by the time you read it — the station publishes today's.

How we know this — Slim Sam Rd 621 003

Source
U.S. Forest Service recreation data
Confidence
Likely — The record is good enough to put a pin on, but thin in places. Treat the details as a starting point, not gospel.
How it was placed
USFS/BLM authoritative: free & dispersed. Access not field-checked (assumed drive-up).
Nearest MVUM road
US Forest Service Motor Vehicle Use Map roads layer (EDW_MVUM_01, layer 1), Clearinghouse refresh Aug 30, 2026. Straight-line distance from the pin to the nearest mapped segment within 1 mi; surface type, maintenance level and open dates are the agency's own values for that segment, expanded from its codes and otherwise unedited. Nothing here says which road reaches the site.
EV chargers
US DOE Alternative Fuels Data Center station locator, snapshot 2026-09-16. Straight-line miles to the nearest public, open, unrestricted station; restricted and planned units are shown but never counted.
Field check
On the agency's books. The land manager inventoried this site, so its existence is not in question — current conditions are. Nobody from here has camped it recently.

What we don’t know about Slim Sam Rd 621 003

A land record can put you within a few meters of a spot. It cannot tell you any of this — so check it yourself, and treat anything below as the open question it is.

Before you go — Slim Sam Rd 621 003

Is this page wrong about Slim Sam Rd 621 003?

This page was built from a public land record, not from a visit. If you have actually pulled in here and it does not match, that is worth more than anything we can read off a map. Tell Dave what is off — it goes to him, not onto the page.

What did you find? Tick anything that fits.

A reader report is not a fact, and this one will not change a word of this page by itself. Dave reads it and checks it against the agency’s own record, because that record is what this site says. If reader reports are ever shown here they are labelled “reader report, unverified” with the date, and they are never merged into the agency fields.