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Hikes · McBride & Robson Valley · Robson Valley

West Twin Old Growth

A short interpretive forest loop among mature cedar and hemlock just off Highway 16 west of McBride.

Sources reviewed . This is a research date, not a trail inspection.

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Distance
1.2 kmLoop
Elevation gain
Approx. 50 mTerrain-model estimate; not a surveyed measurement.
Walking time
Not published
Difficulty
Easy
How the elevation gain was established

Outing: loop outing from Published roadside trail access; 1.26 km along the mapped itinerary

Copernicus DEM 2021 GLO-90 via Open-Meteo (90 m resolution). v7-smoothed-ascent-1: interpolate retained terrain samples at 100 m spacing; apply one triangular 1:2:1 smoothing pass over ±100 m; preserve start, finish and documented turnaround heights; sum uphill excursions with a 5 m reversal threshold; round to nearest 10 m.

Approximate terrain-model ascent, not a field or GPS measurement. Coarse cells and smoothing can miss small climbs, switchbacks, structures and sharp terrain. Processing sensitivity is not a statistical confidence interval.

Sources checked 2026-10-19.

Map & elevation

Opening the map…

Elevation profile

Full loop · approximately 1.3 km mapped

Complete loop elevation profile, starting at Published roadside trail access, finishing at Published roadside trail access850 m900 m950 m0 km0.3 km0.6 km0.9 km1.3 km
StartPublished roadside trail access1.3 km · back at startPublished roadside trail access
Explore the elevation with the chart or slider.

Approximate terrain elevation. Mapped distance may differ from the published hike distance.

Map and elevation sources

Approximate ground elevation from a 90 m terrain model. Distance follows the mapped itinerary and may differ from published walking distance. This is a terrain-model profile, not a surveyed measurement. Any ascent total is identified separately with its own source or estimation method.

The named interpretive loop is closed in the OSM source. Its approach meets the loop at the exact same source coordinate. Walking the approach, closed loop and reversed approach produces a continuous 1.263 km outing, consistent with the tourism guide’s approximately 1.2 km complete circuit. The approach begins within 87 m of the historical published parking point; no parking-to-trail connector is invented.

Route source 1Route source 2Route source 3Route source 4Route source 5

Copernicus GLO-90 terrain elevations via Open-Meteo (CC BY4.0); linework: Open Database License (ODbL) 1.0 · checked 2026-10-18 · CC BY4.0 elevation data; Open Database License (ODbL) 1.0 linework. Copernicus DEM 2021 GLO-90 via Open-Meteo. Linework source: https://www.openstreetmap.org/way/405401665. Sampled and rounded for display.

Complete mapped outing from Published roadside trail access. Line source (opens original source).

Getting there & parking

  1. Drive west from McBride on Highway 16 and watch for the marked trail pullout before the West Twin river crossing.

Parking: Look for the small gravel pullout on Highway 16 about 29 km west of McBride, approximately 800 m before West Twin Bridge when driving west from town.

Full access notes

From McBride, drive west on Highway 16 for approximately 29 km. Look for the small gravel trail parking area on the south side of the highway, roughly 800 m before the West Twin bridge when travelling from McBride. The lot is near a curve and can be easy to miss; identify the signed trail entrance before turning. The path enters the forest directly from this parking area.

Map position: 53.44019, -120.50536 · historical published trailhead / parking area (2010). West Twin Old Growth trailhead: 53 26.4112 N, 120 30.3218 W (degrees and decimal minutes), PDF page 2. Historical Highway 16 pullout location; current access not confirmed. The tourism-hosted guide identifies itself as a research copy and says access, trails and amenities have not been updated. Coordinate provenance is verified; current access is not.

On the trail

  1. Enter the forest beside the trail sign and follow the interpretive old-growth loop back to the roadside start.

Full route notes

Follow the marked interpretive loop through the cedar-hemlock stand and return to the same roadside trailhead. Information signs explain the old-growth forest along the way. The published outing is about 1.2 km for the complete loop, so this record describes the short forest visit rather than any longer route into West Twin Park. Allow time to read the signs and look at the large trees; the source does not establish a wheelchair-standard surface or a separate measured elevation gain.

The way back

The tourism guide describes a 1.2 km loop. The forest circuit returns to its start rather than requiring a second trailhead.

Conditions & seasons

Season-specific access has not been established in this guide. Read the dated notices and original land-manager information before choosing a departure date.

These are dated research notes. Open the trip planner for current available weather and advisory feeds; no alert found does not establish that a trail or road is open.

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Camping & overnight plans

On-route camping permission has not been established for this outing. Check the relevant land manager before planning an overnight stay; a mapped lake, cabin or previous tent location does not confirm permission.

Photos of West Twin Old Growth

A photograph with confirmed reuse permission has not yet been added to this guide.

Original photo galleries

These galleries stay on their photographers’ original websites.

Take this guide with you

Choose a trip pack or an available individual sheet for your map case.

Full trip packDirections, planning notes & available mapsTopographic mapComplete mapped outing and source locationsElevation sheetProfile of the complete mapped outingSave offline guideDownload a copy to your device
Sources, dates & research notes

Descriptions are written for this guide from the linked evidence. Source review dates, published reports and field observations can differ. Photographs and route lines retain their own attribution and reuse terms.

  1. https://mcbridetourism.ca/adventure-outdoor/hiking/ (opens original source)
  2. https://mcbridetourism.ca/wp-content/uploads/McBrides-Green-Guide.pdf (opens original source)
  3. https://bcparks.ca/west-twin-park/ (opens original source)
  4. https://www.davidmarchant2.ca/Color_and_Light_2/Blog/Entries/2025/9/9_West_Twin_Old_Growth_Area.html (opens original source)
  5. https://open-meteo.com/en/licence (opens original source)
  6. https://open-meteo.com/en/docs/elevation-api (opens original source)
OpenStreetMap line references (2)

These contributor-mapped features support the map geometry. They are separate from the written access and route sources.

  1. https://www.openstreetmap.org/way/405401665 (opens original source)
  2. https://www.openstreetmap.org/way/1560296026 (opens original source)
Details still being researched
  • Numeric gain is not published by the tourism source.

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