TERRANE Ridgeline National Reserve

Ridgeline National Reserveest. 1926Field guide, 47th edition

TERRANE

Sheet 47 Redpine datum 100 m contour interval Traverse bearing N 14°E

The mountain keeps its own ledger — every contour a year,
every ridge a sentence written in stone.

51°17′ N — 117°42′ W Highest point 2,847 m 48,700 hectares
Begin the ascent
Legend Contour interval 100 m Maintained trail Named summit Ranger station Datum: Redpine Survey, 1911 · declination 14°E

Rapid Survey

A living relief sheet, revised while you scroll.

The terrain is not a backdrop. Each section asks the camera for a new bearing: approach, ridge, plan view, seasonal recolour, summit pullback.

Camera waypoints
9
Story ascent
2,207 m
Index contours
Every 500 m
EL. 640 M

§ 01 · The Reserve

A country drawn
in patient lines

Ridgeline was first put to paper in 1911, when the Ordnance Cartographic Corps spent two summers dragging plane tables and invar tape up the Aldercrest Massif. Their sheets — twenty-six contour intervals, inked by hand — remain the bones of every map of this country, including the living one behind these words. In 1926 the whole survey block was set aside by charter, “to be held unbroken, that the high ground may keep its silence.”

The reserve encloses one massif, thirty-one named summits, a chain of glacial tarns and roughly nine hundred years of recorded avalanche paths. Nothing here is decorative. Every line on the map is a fact about the ground.

Protected area
48,700 ha
Maintained trail
214 km
Named summits
31
Highest point
2,847 m

“We ran out of ink before we ran out of mountain.”— Field diary of surveyor E. Calloway · August 1912

EL. 1 120 M

§ 02 · The Massif

Five summits,
one long argument with the sky

The Aldercrest Massif runs eleven kilometres on a north-east bearing, a single ridge that never once drops below the treeline. Read left to right — as you would from the gate — its skyline is a sentence of five clauses.

  • Mount Aldercrest2,847 mfirst ascent 1931, R. Voss & partyThe high altar. Holds snow into July; the summit register lives in a brass tube.
  • Sawtooth Spire2,712 mfirst ascent 1938Serrated gendarmes on the east arête. Ropework expected, humility mandatory.
  • Cinder Dome2,340 msurvey ascent 1912An old shield volcano, gentle by comparison; its north wall shelters six tarns.
  • Hollowhorn Peak2,205 mfirst ascent 1929Named for the wind that sings through its notch on any day ending in a storm.
  • The Sentinel1,988 msurvey ascent 1911First peak visible from Redpine Gate; the whole reserve is read from its shoulder.
EL. 1 480 M

§ 03 · Trails

Four ways up,
one way to walk them — slowly

The map has turned beneath you: you are looking straight down at the reserve now, the way a trail is planned before it is walked. Grades follow the 1926 wardens' scale.

Grade I · Easy

Larkspur Meadows Loop

Boardwalk and packed earth through the wildflower shelf below the treeline. An accessible spur reaches Mirror Tarn, where the massif stands on its head in still water.

Distance
4.2 km
Ascent
130 m
Time
1½ h
Surface
Boardwalk
Grade II · Moderate

Glacier Tarn Circuit

A chain of six tarns strung beneath Cinder Dome's north wall, each one colder and bluer than the last. Ice lingers on the sixth into midsummer.

Distance
8.9 km
Ascent
460 m
Time
3½ h
Surface
Stone & scree
Grade II · Moderate

Kestrel Ridge Traverse

An airy walk along the reserve's most photographed skyline. Exposed after the saddle; turn back at the first hint of cumulus building over Sawtooth.

Distance
11.8 km
Ascent
640 m
Time
5 h
Surface
Ridge path
Grade III · Strenuous

Aldercrest Summit Push

The long way to the top of everything. Pre-dawn start advised; register at Tarn Hollow station and again in the brass tube on the summit, if your hands still work.

Distance
17.4 km
Ascent
1,520 m
Time
9 h
Surface
Alpine mixed
EL. 1 910 M

§ 04 · Seasons

The mountain wears
four different maps

Cartographers pretend the land holds still. It does not. As you pass each season below, the map behind you is redrawn in that season's ink.

April — June

Thaw

Meltwater finds every one of the survey's nine hundred avalanche paths and adds a few of its own. The tarn chain overflows tarn to tarn like a poured drink. Avalanche gates open the first of June — not a day sooner, whatever the sky claims.

Snowline
1,650 m, retreating
First bloom
Glacier lily, 12 May avg.
Access
Valley trails only to 1 June
July — August

High Summer

Six weeks of honest rock. The meadows burn larkspur-blue, the marmots grow opinionated, and every route in this guide is open. Afternoon storms build over Sawtooth with the punctuality of a branch-line train.

Snowline
2,600 m, north faces
Daylight
16 h 40 min at solstice
Access
All trails & refuges open
September — October

First Frost

The larches turn in a single fortnight, a rust tide rising to the treeline and stopping there, obedient to the contour. The light goes long and amber. Old wardens call it the honest season: the mountain shows you exactly what it is.

Larch turn
Peaks ~4 October
First snowfall
Summits, late September
Access
Tarn Hollow closes 31 Oct
November — March

Snowbound

The reserve closes its book. Ski traverse only, by permit, for parties who can read a slope the way others read a timetable. The contours vanish under three metres of snow — but they are still down there, holding their line.

Base depth
310 cm at Kestrel Saddle
Avalanche rating
Considerable to high
Access
Winter permit, parties of 3+
EL. 2 340 M

§ 05 · Field Notes

Margins of
the wardens' logbook

Four entries, chosen from ninety years of station diaries. Species names are given as the wardens wrote them.

  1. 14 June · Sentinel scree, 2,100 m

    Whistling marmot (Marmota caligata)

    One sentry on the block field, whistling a full valley ahead of us. By the saddle the entire slope knew we were coming. Counted eleven; the log says our predecessors counted eleven in 1937 too.

  2. 02 July · Kestrel Saddle, 2,050 m

    Alpine forget-me-not (Eritrichium nanum)

    Cushions no wider than a coin, blue enough to make the sky look like it isn't trying. Growing in the lee of the same boulder noted in the 1954 diary. Some things in this reserve are more permanent than the stations.

  3. 23 September · Tarn Hollow station, 1,430 m

    Gray jay (Perisoreus canadensis)

    The station's resident camp robber took a biscuit from the visitors' table, then a second for its cache, then posed for a sketch as if invoicing us. Bolder than the guidebook admits. The guidebook is this one. Noted.

  4. 08 January · Mirror Tarn, 1,210 m

    Lynx track (Lynx canadensis)

    A single line of prints crossing the tarn ice — purposeful, unhurried, spaced like a metronome. We never saw the animal. In nine winters here I have logged the lynx four times and seen it none. The map records what the eye cannot.

EL. 2 847 M

§ 06 · Waypoints & Passage

Stations, permits,
and the way back down

Ranger stations of Ridgeline National Reserve
StationElevationSeasonServices
Redpine Gate640 mYear-roundPermits, maps, warden post, last stove-coffee for 40 km
Tarn Hollow1,430 mMay – OctoberSummit register, weather board, eight bunks
Kestrel Saddle Refuge2,050 mUnstaffedTwelve bunks, wood store, storm shutters; leave it better

Passage

Day access is free and unmetered. Overnight travel requires a permit, issued without charge at Redpine Gate or by wire to the warden's office. Winter traverse parties of three or more only, and the wardens will look at your rope before they look at your paperwork.

Conduct

Pack out everything, including opinions about the weather. Fires in station stoves only. Give the marmots nothing but distance. The reserve's single rule has not changed since 1926: take the path, leave the mountain.

You have climbed 2,207 metres of guidebook.
The contours end here; the mountain, of course, does not.

SUMMIT REGISTER · EL. 2,847 M · RIDGELINE N.R.