Isabell Glacier Trail + Pawnee Pass Trail out and back

Indian Peaks Wilderness · 8.77 mi out and back · about 3 hr 50 min

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Route view:
Distance8.77 micomputed
Elevation gain1,883 ftcomputed
Elevation loss1,891 ftcomputed
Est. time3 hr 50 minNaismith's rulecomputed
DifficultyNot ratedno source has rated itunknown
Highest
12,269 ft
Lowest
10,522 ft
Route type
One way or out and back
Surface
Not mapped
Offline
Start1 kmN
Schematic preview drawn from the trail geometry. No basemap yet; do not use for navigation. Start = circle.

Overview

Isabell Glacier Trail + Pawnee Pass Trail out and back is mapped as a trail of 8.77 mi in Indian Peaks Wilderness. It is not a loop: you walk it one way or out and back.

It runs between 10,522 ft and 12,269 ft above sea level, a difference of 1,747 ft.

Mapped along or near the trail: 1 waterfall.

Estimates

  • Estimated time 3 hr 50 min one way by Naismith's rule, which assumes steady walking and adds time for climbing. Real time varies.

Before you rely on this

  • No water source is mapped for this trail. That may only mean nobody has mapped one, so carry your own water.
  • Check the land manager for closures, seasonal rules and permits before you go; none of that is verified here.

Elevation

10,524 ft11,396 ft12,269 ft08.76 mi

Hover, tap, or use the arrow keys on the chart to read a point; it is shown on the map too.

Elevation along the trail from start (left) to end (right) as drawn. Values are computed from USGS 3DEP 1/3 arc-second DEM (public domain), sampled about every 10 m and smoothed. Shaded bands are sections steeper than about 12% (7 climbing in red, 5 descending in blue).
Steep sections (12)
  • 0 ft to 0.70 mi: about 21.9% downhill (from the elevation model, so rough)
  • 0.85 mi to 0.90 mi: about 16.4% downhill (from the elevation model, so rough)
  • 1.28 mi to 1.44 mi: about 18.6% downhill (from the elevation model, so rough)
  • 1.51 mi to 1.58 mi: about 31.5% downhill (from the elevation model, so rough)
  • 1.89 mi to 1.94 mi: about 19.8% uphill (from the elevation model, so rough)
  • 2.40 mi to 2.56 mi: about 16% downhill (from the elevation model, so rough)
  • 6.17 mi to 6.33 mi: about 15.3% uphill (from the elevation model, so rough)
  • 7.16 mi to 7.23 mi: about 28.4% uphill (from the elevation model, so rough)
  • 7.30 mi to 7.46 mi: about 18.3% uphill (from the elevation model, so rough)
  • 7.84 mi to 7.90 mi: about 12.2% uphill (from the elevation model, so rough)
  • 8.11 mi to 8.51 mi: about 25.4% uphill (from the elevation model, so rough)
  • 8.59 mi to 8.76 mi: about 21.7% uphill (from the elevation model, so rough)

Before you go

Parking
No parking is mapped near the start. not verified
Trailhead and directions
Start at 40.06154, -105.64578. Directions to the start ↗
Permits and fees
We have no verified permit or fee details. Official pages: Indian Peaks Wilderness ↗, Boulder County ↗ (we have not recorded when these were last checked). not verified
Dogs
No dog rule is tagged. not verified
Water
No water is mapped. Carry your own. not verified
Toilets and facilities
None mapped. not verified
Accessibility, bikes and horses
No access details are tagged. not verified
Seasonal rules, closures and hazards
Not verified here. Check the land manager (Indian Peaks Wilderness ↗) and read the hiker condition reports below. No report does not mean the trail is open or safe. not verified

Weather at the trailhead

Sun46° / 31°Mostly Sunny0% precip
Mon44° / 30°Mostly Sunny then Slight Chance Snow Showers20% precip
Tue44° / 32°Mostly Sunny11% precip
Wed46° / 34°Mostly Sunny2% precip
Thu49° / 35°Mostly Cloudy then Chance Rain Showers51% precip
Fri46° / 27°Snow Showers Likely65% precip
Sat37° / 27°Chance Snow Showers45% precip

Today: sunrise 7:15 AM, sunset 6:18 PM (computed from the trailhead location).

Forecast for the trailhead area from the U.S. National Weather Service, updated Oct 18, 12:46 AM. Mountain weather changes fast and can differ a lot by elevation: check the official forecast for your route before you go.

Recent conditions

Reports come from Arête members, not from land managers. They show when something was seen, not whether it is still true. Check official sources before you go.

No condition reports in the last 30 days. Conditions are unknown, not necessarily good.

Reviews

No reviews yet, so there is no rating to show. We never invent ratings. Sign in to be the first to review this trail.

Photos and places from hikers

Added by community members and checked by our team before they appear. Photos have their location data removed. These are not official information.

No approved photos or places yet.

Along the way

Sights

  • Waterfall1.55 mi from start
    Unnamed OSM ↗

Points come from OpenStreetMap contributors and can be missing, moved or out of date. How we label data.

Nearby trails

Arête-built route from mapped trails

Assembled by Arête from mapped trail segments. Not an official or recommended route.

  1. Isabell Glacier Trail · 2.32 mi
  2. Pawnee Pass Trail · 0.89 mi (part of the mapped trail) · walked back
  3. Pawnee Pass Trail · 0.96 mi (part of the mapped trail) · walked back
  4. Pawnee Pass Trail · 0.20 mi (part of the mapped trail) · walked back
  5. Pawnee Pass Trail · 62 ft (part of the mapped trail) · walked back
  6. Pawnee Pass Trail · 62 ft (part of the mapped trail)
  7. Pawnee Pass Trail · 0.20 mi (part of the mapped trail)
  8. Pawnee Pass Trail · 0.96 mi (part of the mapped trail)
  9. Pawnee Pass Trail · 0.89 mi (part of the mapped trail)
  10. Isabell Glacier Trail · 2.32 mi · walked back

Starts at a derived trailhead (1 mapped trail start within 150 m), no mapped parking within 400 m; the route starts at the nearest mapped trail junction, 0 m from that point. Built by Arête from the graph of mapped trail segments (OpenStreetMap). Segments join where their ends are within 12 m of each other or one ends on another's line (a T-junction). A loop returns to its start without repeating a trail section; an out-and-back goes to a mapped trail end and returns the same way, so its length counts both directions. Names come only from the mapped trails it uses. Length is measured on the joined line; elevation is computed from USGS 3DEP. Not an official or recommended route.

Data, sources and how the numbers are made
Length8.77 micomputed
Route typeOut and backcomputed
SurfaceUnknownunknown
DifficultyUnknownunknown
Elevation gain (as drawn)1,883 ftcomputed
Elevation loss (as drawn)1,891 ftcomputed
Estimated durationabout 3 hr 50 min one way as drawn (Naismith's rule)computed
Official verificationNot verified by an official sourceunknown

Length is measured from the route geometry in the source data, so it can differ from signed or official distances. Gain and loss describe the direction the line is drawn; the route view above shows the other direction and out and back. Elevation is computed from USGS 3DEP 1/3 arc-second DEM (public domain), sampled about every 10 m and smoothed.

© OpenStreetMap contributors (ODbL). Route assembled by Arête from mapped trail segments.. Arête-built routes from mapped trails. Licence: ODbL 1.0 (derived from OpenStreetMap).

Frequently asked questions

How long is Isabell Glacier Trail + Pawnee Pass Trail out and back?

Isabell Glacier Trail + Pawnee Pass Trail out and back in Indian Peaks Wilderness is 8.77 mi long, measured from its route geometry in OpenStreetMap data. Signed or official distances can differ.

How much elevation does Isabell Glacier Trail + Pawnee Pass Trail out and back gain?

Walking from the start to the end as drawn, it climbs about 1,883 ft and descends about 1,891 ft, between 10,522 ft and 12,269 ft. These are computed from the USGS 3DEP elevation model and can differ from other apps; the other direction swaps climbing and descending.

How hard is Isabell Glacier Trail + Pawnee Pass Trail out and back?

Difficulty is unknown: no source we use rates this trail, and we don't guess. Use the length and elevation gain to judge it for yourself.

How long does Isabell Glacier Trail + Pawnee Pass Trail out and back take?

About 3 hr 50 min one way for a fit hiker, by Naismith's rule from the length and climb. It is an estimate: allow more for rest, photos, heat, altitude and weather.

Where does Isabell Glacier Trail + Pawnee Pass Trail out and back start?

The route starts near 40.0615, -105.6458 (Indian Peaks Wilderness, Boulder County). Use the Directions button to open it in your maps app.

Are dogs allowed on Isabell Glacier Trail + Pawnee Pass Trail out and back?

Not tagged in OpenStreetMap, so it is unknown. Check posted signs and the land manager's website.

Is there water, parking or a toilet at Isabell Glacier Trail + Pawnee Pass Trail out and back?

Mapped in OpenStreetMap near this trail: 0 water points, 0 parking areas, 0 toilets. Mapped water is not tested or guaranteed: carry your own. Fees and permits are not included here; check the official page.

Trail data can be wrong or out of date, and Arête is not an emergency service. Check official sources, weather and closures before you go.

Directions