Hanging Lake Trail rerouted

Backcountry Skiing issues

Created: 4 years ago

he Hanging Lake Winter Trail has been rerouted to avoid some large blowdowns. About 300m from the trailhead, the trail climbs a small hill littered with fragments of large fallen trees. From here the trail used to climb up to the left into an alder patch and pass a large uprooted tree. This route is now blocked by blowdowns, so keep right staying level and crossing a small stream then climbing up and right to connect with the original trail.

The new alignment has been marked, albeit the markers are low on the trees and may eventually be obscured by snow. I plan to raise them in late winter. The markers on the old alignment were too high to pull down, so they are still in place and will remain so until the snowpack is deep enough to reach them. I have updated the openstreetmap database, so the new alignment will eventually propagate to Gaia, alltrails and other apps but I don't know exactly when. The new trail alignment passes by a large yellow cedar tree that is so tall, the lowest branches are nearly 100 feet off the ground.

I would appreciate feedback, so please reply to this thread after you ski it this coming winter and I can make the required adjustments next year.

@StasK - 43 Posts

Created: 4 years ago

Possibly an uninformed question. I use openmtbmap, which I usually download once a year into my Basecamp and onto Garmin 64 unit. When a single sequence of nodes gets updated in a openstreetmap path, is there a way to just get the delta containing the updates, instead of pulling down entire Canada openstreet/openmtb database copy?

I found your changeset on opensteetmap, but having hard time finding tool which would export just the updated path to gpx.

Thanks, and sorry if a dumb question.

@ScottNelson - 116 Posts

Created: 4 years ago

I think maybe you need to download the entire OSM database (or a recent BC or canada extract), and then filter out only the Hanging Lake trail with an SQL query. How are you extracting the GPX from the database?

@StasK - 43 Posts

Created: 4 years ago

Ok I found a way, just needed more googling.

In openstreetmap.org, the path/way is a sequence of nodes. Here's one for Hanging Lake Winter Trail: https://www.openstreetmap.org/way/253239235. It can only be downloaded as XML, which regular GPS software doesn't understand. OSM has server side scripting, however, with built in API which is able to spit out gpx from a node sequence.

The easiest way is via Overpass Turbo site/scripting interface. Type in

way(253239235);

out geom;

Then click Run and Export.

Beats redownloading gigs of database. Hopefully useful to someone else too :)

@ScottNelson - 116 Posts

Created: 3 years ago

For the record, I raised all the markers on the reroute, and pulled the markers off the old route on March 16th.