FirefinderFire lookouts of the US

Fire lookout · Lewis & Clark County, Montana

Prairie Reef Lookout

A Forest Service lookout near Augusta, first used in the 1920s, with an L-4 cab from 1931 and the present R-6 cab from 1968, staffed each summer.

Visit & stay

Not rentable. As far as we know, this lookout cannot be booked for overnight stays.

Access

Restricted access

Access is seasonal, gated or needs a permit. Check before you go. Staffed Forest Service lookout. No source read describes a road or trail to the site or says whether the public may visit.

Can you climb it?
Unknown
Road to the top?
Unknown
Staffing
Staffed during fire season

Facts

Status
Standing
Type
Ground-level cabPresent R-6 flat cab, built 1968; earlier L-4 cab built 1931The designs: L-4, R-6
Built of
WoodGoing by its design; no source says so in words.
Height
Unknown
Elevation
8,793 ft (2,680 m)
Agency
US Forest Service
Land
Federal land
Location
Lewis & Clark County, Montana
Coordinates
47.59433, −113.01645
This entry
VerifiedResearched, then checked independently. Updated 8 Oct 2026.
Firefinder id
us-mt-prairie-reef

View from the cab

What you see from the cab: every ridge out to about 93 miles, the named peaks in sight, and other fire lookouts within view, worked out from terrain data in your browser.

Downloads about 3.8 MB of terrain data the first time.

Or see what it could see on the map: the ground in its line of sight.

History

Then and now

  1. 1931 BuiltL-4 cab built, per the register and firelookout.com; a 9 July 1931 newspaper item reports the station under constructionSources: nhlr.org, firelookout.com, montanalookouts.weebly.com
  2. 1940 StaffedNewspaper item of August 1940 mentions a lookout at the stationSource: montanalookouts.weebly.com
  3. No record between 1940 and 1968
  4. 1968 Built'Built' field on NHLR detail pageSource: NHLR register entry
  5. 1968 Replaced by a new structurePresent R-6 flat cab built 1968; the register describes it as the present cabSources: nhlr.org, firelookout.com
  6. No record between 1968 and 1984
  7. 1984 StaffedUniversity of Montana student served as volunteer lookout that summer (Sun Valley Sun item quoted on the Forest Lookouts page)Source: montanalookouts.weebly.com
  8. No record between 1984 and 2022
  9. 2022 Added to the National Historic Lookout RegisterRegistered April 12, 2022 as US 1541Source: nhlr.org
  10. TodayStandingIt still stands, as far as our sources know.

Old maps of this spot

USGS topographic maps from the years a lookout stood may show it, often as a small symbol labelled “Lookout”. See the old topo maps around it on the Firefinder map, or find every scanned sheet of this spot on USGS TopoView (click the spot there to list them, with dates and downloads).

Story

Researched 8 Oct 2026, fact-checked.

Prairie Reef Lookout sits about 30 miles west-northwest of Augusta, on the highest point of a bare-topped mountain in the Lewis and Clark National Forest.1,2 The site was first developed with a camp lookout in the 1920s.3 An L-4 cab went up in 1931,3,1 and a newspaper item dated 9 July 1931 says the Forest Service was building a station there, with materials carried in by pack horse.2

The present cab is an R-6 flat cab, built in 1968.3,1 The register and firelookout.com both give the 1931 and 1968 dates, but they describe two different cabs on the site, so the dates do not contradict each other.3,1

Staffing has been part of its story. A 1940 newspaper item mentions a lookout at the station, and in August 1984 a University of Montana student served there as a volunteer lookout.2 The register says the present cab is staffed every summer.3 A KTVH feature says the Helena-Lewis and Clark National Forest staffs five lookouts, Prairie Reef among them, though the copy I read carries no date.4

I found no source that says who built the 1968 cab or what it cost. None of these sources reports a fire or a move at the site. They describe it as a working lookout rather than an abandoned one.3,4

None of the sources I read describes a road or trail to the site, or says whether the public may visit. Check with the Forest Service before planning a trip.

  1. Prairie Reef Fire Lookout Cabin, firelookout.com, https://www.firelookout.com/mt/prairiereef.html (accessed 2026-10-08). ↩
  2. Prairie Reef - FOREST LOOKOUTS, Forest Lookouts (montanalookouts.weebly.com), https://montanalookouts.weebly.com/prairie-reef.html (accessed 2026-10-08). ↩
  3. Prairie Reef Lookout, National Historic Lookout Register, http://nhlr.org/lookouts/us/mt/prairie-reef-lookout/ (accessed 2026-10-08). ↩
  4. Montana fire lookouts: Alone on a peak to watch for wildfires, KTVH, https://www.ktvh.com/news/montana-fire-lookouts-alone-on-a-peak-to-watch-for-wildfires (accessed 2026-10-08). ↩

Photos

Photo of Prairie Reef Lookout
Photo: National Historic Lookout Register (nhlr.org) · All rights reserved · source
Photo of Prairie Reef Lookout
Photo: National Historic Lookout Register (nhlr.org) · All rights reserved · source
Photo of Prairie Reef Lookout
Photo: National Historic Lookout Register (nhlr.org) · All rights reserved · source
Prairie Reef in 1945
Prairie Reef in 1945 (1945)Photo: the Fire Lookout Museum, Kelsey Chapman, and Luke Channer, via firelookout.com · source
Prairie Reef L.O.
Prairie Reef L.OPhoto: the Fire Lookout Museum, Kelsey Chapman, and Luke Channer, via firelookout.com · source
Prairie Reef in 2020
Prairie Reef in 2020 (2020)Photo: the Fire Lookout Museum, Kelsey Chapman, and Luke Channer, via firelookout.com · source
Prairie Reef in 2020
Prairie Reef in 2020 (2020)Photo: the Fire Lookout Museum, Kelsey Chapman, and Luke Channer, via firelookout.com · source

Photos keep their own rights and are shown with credit. Is one of these yours? You can ask for a different credit or for removal.

Where sources disagree

We show disagreements between sources instead of quietly picking one. If you know which is right, please tell us.

  • Sources disagree on the year it was built.

    • NHLR: 1968
    • firelookout.com -- Rex Kamstra's Forest Fire Lookout Page: 1931

    Sources give different build years. Often one counts the first lookout on the site and another the structure there now.

Sources

  1. National Historic Lookout Register (NHLR) Gave us: name, location, county, elevation, register numbers, agency, ownership, dates, photos, links National Historic Lookout Register (nhlr.org) · All rights reserved (American Resources, Inc.); facts extracted only, no prose copied. · retrieved 4 Oct 2026
  2. Forest Fire Lookout Association (FFLA) - US lookout lists Gave us: type, status, register numbers, links Forest Fire Lookout Association (firelookout.org) · No licence stated; facts extracted only, no prose copied. · retrieved 8 Oct 2026
  3. firelookout.com -- Rex Kamstra's Forest Fire Lookout Page Gave us: what it is built of, design, staffing, photos, links firelookout.com · No licence stated on the site; facts only (coordinates, elevation, built/destroyed years, design, agency). Photos mirrored with the site's stated credit. · retrieved 4 Oct 2026
  4. OpenStreetMap -- fire lookout structures Gave us: access, links © OpenStreetMap contributors · ODbL 1.0. (c) OpenStreetMap contributors. · retrieved 4 Oct 2026
  5. FOREST LOOKOUTS -- western US (Ron Kemnow's weebly sites) Gave us: links Ron Kemnow's Forest Lookouts sites (westlookouts, californialookouts, idaholookouts, montanalookouts, oregonlookouts and washingtonlookouts .weebly.com) · No licence stated; facts only (county, land manager, status word, coordinates where the page's own map widget gives them, township-range-section, height and design hints, links). The site's own newspaper quotes, citations and narrative are not reproduced. · retrieved 8 Oct 2026
  6. Firefinder research Gave us: summary, design, agency, access, dates, links, fact-check Firefinder research (sources cited in the story footnotes) · Our own research notes; each fact cites its source in the lookout's story

More about this lookout elsewhere

Firefinder takes facts (places, dates, numbers) from these sources and writes its own words. See all sources and licences.