4T Trail
Hard · IvyMarquam Nature Park, Oregon
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Add the first21.4 km13.3 mi
Distance
642 m2106 ft
Elevation gain
5h 50m
Est. time
Route
Route type
- No bicycles
What to expect on this trail
- Paved
- Steep
- Rolling
- Hiking
How these were worked out
- Pavedrecorded
- OpenStreetMap records the surface of this trail as "paved". Source: OpenStreetMap, high confidence.
- Steepestimated
- Nine tenths of this trail is at or below a 18.2% grade, and its steepest climb reaches 50.4%. Source: DEM terrain profile, high confidence.
- Rollingestimated
- The grade varies by 11.0 percentage points along the route rather than climbing steadily. Source: DEM terrain profile, moderate confidence.
Biking is not listed. That means no explicit permission is recorded, which is not the same as a prohibition — see the bike section below.
Ivy's Peak Challenge Steep, long, or rough. Experienced hikers will love it.
About this trail
4T Trail is a 21.4 km trail in Oregon. Route imported from OpenStreetMap (© OpenStreetMap contributors, ODbL); community descriptions, photos, and condition reports welcome.
Play the route
Fly the trail end to end, with the climb as it comes.
Conditions
Loading forecast…
Elevation profile
Terrain sampled every 35 m from public elevation data.
- Descent
- 583 m
- High point
- 327 m
- 90th percentile grade
- 18.2%
Bike access & suitability
Legal permission and physical difficulty are evaluated separately.
Legal access
prohibited
OpenStreetMap marks bicycle access as prohibited on part of this route, while other sections are marked open. A closure anywhere on a route closes the whole route here, so treat it as closed until the restricted section is identified.
Sections of this route are mapped as open to bicycles and at least one is not. Identify the closed section before planning to ride any of it.
Estimated MTB suitability
Moderate
53% confidence - score 43/100
- - Terrain: 18.2% 90th-percentile grade and 30 m climbing per km.
- - Surface: paved.
Source: Explicit OpenStreetMap access tags - OpenStreetMap contributors - checked Aug 2, 2026 - rules v2
View access evidencePosted signs and current land-manager closures always override OpenTrail.
Report incorrect bike access
Connecting trails
Trails whose path meets this one — plan a longer route or a loop.
- Goose Hollow to Tryon Creek Trail16.9 km · 10.5 miHard · Ivy
- Washington Park to Lesser Park Trail14.1 km · 8.8 mi · Gabriel ParkHard · Ivy
- Terwilliger Trail12.2 km · 7.5 miHard · Ivy
- Red Electric Trail11.6 km · 7.2 miHard · Ivy
- North Macadam to Hamilton/Scholls Ferry10.9 km · 6.8 miHard · Ivy
- Marquam Trail7.6 km · 4.7 mi · Marquam Nature ParkModerate · Ace
- Maple Trail6.2 km · 3.8 mi · Forest ParkModerate · Ace
- Southwest 4th Avenue4.1 km · 2.5 miModerate · Ace
- Southwest Naito Parkway2.8 km · 1.7 miEasy · Fern
- Southwest 5th Avenue2.2 km · 1.4 miEasy · Fern
- 4T Trail2.1 km · 1.3 mi · Marquam Nature ParkEasy · Fern
- Southwest Council Crest Drive2.0 km · 1.2 miEasy · Fern
- Nature Loop Trail1.9 km · 1.2 mi · Marquam Nature ParkEasy · Fern
- Southwest 6th Avenue1.8 km · 1.1 miEasy · Fern
- Southwest 1st Avenue1.7 km · 1.1 miEasy · Fern
- Southwest 3rd Avenue1.7 km · 1.0 miEasy · Fern
- Southwest Salmon Street1.6 km · 1.0 miEasy · Fern
- Southwest Broadway1.6 km · 1.0 miEasy · Fern
- Moody Avenue Trail1.5 km · 1.0 miEasy · Fern
- Southwest Main Street1.4 km · 0.9 miEasy · Fern
- Southwest Jefferson Street1.4 km · 0.9 mi · South Park BlocksEasy · Fern
- Southwest 2nd Avenue1.4 km · 0.9 miEasy · Fern
- Southwest Morrison Street1.3 km · 0.8 miEasy · Fern
- Southwest Yamhill Street1.3 km · 0.8 miEasy · Fern
Trails nearby
Other routes within about 15 km.
- 350 m away
Vietnam Veterans Memorial
Easy · FernVietnam Veterans of Oregon Memorial, Oregon
674 m · 10m · ↑ 0 m
- 400 m away
Connector Trail
Easy · FernHoyt Arboretum, Oregon
704 m · 10m · ↑ 6 m
- 400 m away
Overlook Trail
Easy · FernHoyt Arboretum, Oregon
1.13 km · 15m · ↑ 5 m
- 400 m away
Dogwood Trail
Easy · FernForest Park, Oregon
1.60 km · 35m · ↑ 117 m
- 500 m away
Wildwood Trail
Hard · IvyForest Park, Oregon
46.58 km · 11h 40m · ↑ 791 m
- 650 m away
White Pine Trail
Easy · FernHoyt Arboretum, Oregon
1.16 km · 20m · ↑ 69 m
- 750 m away
Redwood Trail
Easy · FernHoyt Arboretum, Oregon
617 m · 10m · ↑ 34 m
- 800 m away
Spruce Trail
Easy · FernHoyt Arboretum, Oregon
570 m · 10m · ↑ 25 m
- 900 m away
Bristlecone Pine Trail
Easy · FernHoyt Arboretum, Oregon
979 m · 15m · ↑ 14 m
- 1000 m away
Sunset Highway Path
Moderate · AceOregon
3.08 km · 50m · ↑ 80 m
- 1.3 km away
Japanese Garden Trail
Easy · FernWashington Park, Oregon
534 m · 10m · ↑ 46 m
- 1.9 km away
Founders Trail
Easy · FernUhtoff Sanctuary, Oregon
847 m · 15m · ↑ 43 m
Photos
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Frequently asked
How long is 4T Trail?
4T Trail is 21.4 km (13.3 miles) as a route. Allow roughly 5h 50m at a steady walking pace, not counting stops.
How hard is 4T Trail?
OpenTrail rates it hard. It climbs about 642 m overall, and its steepest sustained stretches run around 18%.
Where is 4T Trail?
4T Trail is in Marquam Nature Park, Oregon. The map on this page shows the full route, where it starts, and any mapped parking nearby.
Is there parking at 4T Trail?
No parking area is mapped within 1.5 km of this route in OpenStreetMap. That is not the same as there being none — check local access rules before you go.
Can you bike 4T Trail?
Bicycles are not permitted, according to OpenStreetMap contributors. Legal access and how rideable the surface actually is are tracked separately on this page.