Open in App
Get this trail on your phone instantly.
more stats
1,430 ft
Distance
-231 ft
Descent
00:04:02
Avg time
-231 ft
Altitude change
921 ft
Altitude min
1,153 ft
Altitude max
1,153 ft
Altitude start
922 ft
Altitude end
-16.2%
Grade
-41.7%
Grade max
-4.6%
Grade min
1,430 ft
Distance down
00:04:02
Avg time
Jack Attack Details
-
Activities
- Mountain Bike
- E-Bike
- Hike
- Trail Running
-
Riding Area
-
Difficulty Rating
-
Voted DifficultyRed (1 vote)
-
Local Popularity30 in Mountain Biking [+]
- 65 in E-Biking
- 55 in Trail Running
- 5 in Hiking
-
Global Ranking
-
Hiking SAC ScaleT1 Hiking
-
Trail TypeSingletrack
-
Bike TypeAM
-
DirectionDownhill OnlyPopular Direction Shown
-
Physical RatingModerate
-
Trail VisibilityAlways easy to follow
-
eBike AllowedYes up to Class 1
-
TTFs on TrailBerm, Bridge, Drop, Gap Jump, Ladder Bridge
-
Year Opened2022
-
Land OwnerInstituto da Conservação da Natureza e das Florestas, I.P.
Jack Trail is a new trail build in May 2022 by the local trail crew SintraTBC
Access Info
from the parking spot head towards east along the green trail. After 250m turn right into the trail. You will find a sign in the woods (parallel trail Neto is not yet recorded)
Trail Supporters
Hugo Araújo Nascimento Teixeira
since 1996Builder
Local Trail Association
-
-
Please consider joining or donating to the local trail association to supportDonate to earn trail karma!
trail development & maintenance.
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 2 rides
- 9 miles avg distance
All
- 211 rides
- Last: May 3, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Jack Attack Trail Reports
more »
close
-
Layers w
- Weather Layers
- Pro
- Pro
- Pro
- Pro
- Pro
- Pro
- More Layers
- Pro
- Pro
- Pro
- Pro
-
Upgrade to
3D
Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
Trail Flow (Ridden Direction)
Trailforks scans users ridelogs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Ridden
Trailforks scans ridelogs to determine the last time a trail was ridden.
- < 2 days
- < 1 week
- < 2 weeks
- < 1 month
- < 6 months
- > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
- Downhill Only
- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
- One Direction
Contribute Details
Colors indicate trail is missing specified detail.
- Description
- Photos
- Description & Photos
- Videos
Trail Popularity ?
Trailforks scans ridelogs to determine which trails are ridden the most in the last 9 months.
Trails are compared with nearby trails in the same city region with a possible 25 colour shades.
Think of this as a heatmap, more rides = more kinetic energy = warmer colors.
- most popular
- popular
- less popular
- not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches
US Cell Coverage
Legend
Radar Time
Activity Recordings
Trailforks uses anonymized public activity data.
?
Activity Recordings
Trailforks uses anonymized public activity data.
?
Personal Heatmap
▶
Activity Types
all
/
none
▶
Options
2
Date range
month
–
Winter Trails
Warning
A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
Missing Trails
Most Popular
Least Popular
Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status
![map legend]()
Service Road Atlas is a free to use, community-driven service for viewing and creating reports on the numerous back-country service roads around B.C. and Alberta.
Slope Aspect
Direction the slope faces
Trails Deemphasized
Trails are shown in grey.
Only show trails with no bike usage.
Suggested Layers
Based on selected activity type
Save the current map location and zoom level as your default home location whenever this page is loaded.
Save
Directions to jack-attack trailhead
(38.778490, -9.431740)
Photos
0 more »
Videos
1 more »
18:06 |
317 |
Feb 26, 2023 , Sintra
Reviews / Comments
No reviews yet, be the first to write a review or ask a question.
Use trail reports to comment on trail conditions.
We hope you've been enjoying Trailforks!
Create a FREE account to view trail comments and much more.
Nearby Trails
- Neto 253 ft
- Coelho 1,276 ft
- Carrossel 1,345 ft
- Dimas 3 (pontes) 1,942 ft
- Wubbzy 4 3,081 ft
Parque Natural de Sintra-Cascais
- By laimer83 & contributors
- #541793 - 948 views
- Follow/Subscribe
- login to download gpx or kml files.
Frequently Asked Questions About Jack Attack
▼
Where is Jack Attack located?
Jack Attack is located in Parque Natural de Sintra-Cascais, Sintra, Portugal. It is part of the Parque Natural de Sintra-Cascais trail network. The trailhead is located at coordinates 38.77849, -9.43174.
▼
How hard is Jack Attack?
Jack Attack is rated as Red difficulty. The physical rating is Moderate. The average grade is 16.2%.
▼
What is the elevation gain for Jack Attack?
The trail has 231 ft of elevation descent. The elevation ranges from 921 ft to 1,153 ft.
▼
Is Jack Attack a point to point trail?
Yes, Jack Attack is a point to point trail. The direction is Downhill Only. The trail type is singletrack.
Hit the Trail
Download Trail
Save to wishlist, Garmin & download.
Find Related Routes
Find routes and users activities that include this trail.
You must enter a description before submitting.