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1,719 ft
Distance
40 ft
Climb
-29 ft
Descent
00:03:54
Avg time
11 ft
Altitude change
27 ft
Altitude min
65 ft
Altitude max
48 ft
Altitude start
59 ft
Altitude end
0.7%
Grade
-10.9%
Grade max
20.7%
Grade min
591 ft
Distance climb
702 ft
Distance down
325 ft
Distance flat
00:03:54
Avg time
Backflow Details
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Activities
- Mountain Bike
- Winter Fat Bike
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Riding AreaHempstead Harbor Woods
Port Washington, New York -
Difficulty Rating
-
Local Popularity85 in Mountain Biking [+]
- 5 in Winter Fat Biking
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Global Ranking
-
State Ranking
-
Trail TypeSingletrack
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Bike TypeAM, XC, Fat
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DirectionOne Direction
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Climb DifficultyBlack Diamond
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Physical RatingHard
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Trail VisibilitySometimes hard to follow
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eBike Allowed
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TTFs on TrailBerm, Roller Coaster
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Land OwnerTown of North Hempstead
Backflow brings you back to the top of Sand Mine Hill. It starts off with a roller coaster type trail that continues up and down with lots of grade reversals until you get to a real difficult longish climb then you flow down then up again until you get to the top of Sand Mine Hill so you can do that fun section all over again. Hiking not recommended due to slippery slopes.
Access Info
Access is at the end of Quail Trail just before the parking area.
Disclaimer
Use trails at your own risk. Hidden hazards may exist.
Local Trail Association
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Please consider joining or donating to the local trail association to supportDonate to earn trail karma!
trail development & maintenance.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 2 rides
- 6 miles average
6 Months
- 118 rides
- 6 miles avg distance
All
- 903 rides
- Last: Oct 9, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Backflow Trail Reports
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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 activity logs 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 users are riding a trail in its intended direction.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Used
Trailforks scans activity logs 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 activity logs 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 activities = 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.
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Activity Recordings
Trailforks uses anonymized public activity data.
?
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 users jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status
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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.
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Directions to backflow trailhead
(40.836930, -73.664980)
Photos
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Videos
no videos have been added for Backflow yet, add a video.
Routes with this trail
HHW Complete Hard Featured
★ 5.0 • 5 miles • 374 ft • 14 • Loop •
The route includes moderate and hard difficulty trails on both sides of the Hempstead Harbor Woods trail...
HHW South Side Hard Featured
★ 5.0 • 4 miles • 258 ft • 11 • Loop •
The route includes moderate and hard difficulty trails on the South side of the Hempstead Harbor Woods...
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Nearby Trails
- Blue Connector 59 ft
- Quail Trail Option 95 ft
- Entrance Exam 135 ft
- Nor'easter 161 ft
- Quail Loop 161 ft
Hempstead Harbor Woods
- By sick4surf
CLIMB & contributors - #497233 - 894 views
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