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Category: outdoors

Muddy Trails Enhance OpenStreetMap Data

Part of my map making workflow that uses OpenStreetMap (OSM) data requires updating the existing data set to be as accurately as possible before exporting the data. The data that I originally loaded into OpenStreetMap for River Bends was based on GPS surveying that I did not long after some new trails were built. Thus, the (prone to error) GPS data was the most accurate data available.

When updating OSM data, one is explicitly permitted to trace Bing imagery to enhance maps. Earlier today while poking around in JOSM (which adds Bing data as a tile so it can be traced) I noticed that the latest imagery for River Bends was taken on March 11, 2012 and most of the recently built single track is now visible. Because of the particularly wet spring here in Southeast Michigan many of the trails were muddy while these photos were taken, resulting in the trails being visible dark marks on the traceable photos.

The image above demonstrates this, showing the imagery date, current OSM data (red dashed line), and the wide/dark lines are the trails themselves. By adjusting the routes to match the imagery I can radically clarify the OSM data, validating and refining routes. River Bends is due for a map update soon after some new trail construction is complete, so this means that the next map of there will be much, much more detailed and accurate. Thanks in large part to a wet, muddy March.

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…to Richmond

It’s been a while since I last rode to my parents house, so with family plans in the afternoon I set out from home just after 11am, hoping to arrive a bit after 1pm. The last time I did this ride it took me just shy of two hours and I was left very winded with sore legs. This time I beat my previous time by twenty minutes and felt like I could have pushed myself harder. Sure, I was on a different bike, in different weather, and dressed differently, but I figure all of that riding earlier this year has actually made a difference.

Here is the ride data uploaded to Strava, if you’re interested. No, I don’t have a wheel sensor on that bike, thus no cadence and GPS-only speed.

Here’s a few more photos that I took during recent rides:

· Start of the east loop at Holdridge, known as Gruber’s Grinder. This is a slow, rough, but fun ride.
· Mushrooms found somewhere along Gruber’s Grinder.
· Ducks in a park in Lake Orion while stopping near the end of a ride with Scott.

Now, back to work for a couple of weeks, then off for another two. Hopefully I’ll be able to get a bunch of autumn riding (read: hopefully cool, dry weather) in during that time.

On the last ride I was wearing typical winter riding wear and on a full suspension 29er with a knobby front tire. This time I was in typical summer jersey and bib shorts on my older Specialized Rockhopper Disc with a 29″ front wheel and two Small Block Eight tires. I doubt the suspension and clothing was responsible for 20 minutes, though.

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Hammer-based Water Bottle Repair

The water bottle seen above was given to me during a Fun Promotions race at Bloomer a couple years ago when I was on a team with Nick, Marty, and I believe Kristi. It’s a rather nice stainless steel bottle, and I’ve regularly used it since then, quite frequently while working on mountain bike trails. Finding itself stuffed in bags with tools and tossed on the ground in the woods it has become quite scratched.

When out at Addison Oaks a couple weeks ago doing some mapping of the new connector trail it slipped out of my bag a couple times, landing on corse gravel. Dents from this are visible, and they resulted in the bottom becoming so domed that the bottle was more like a Weeble.

With a couple of carefully placed blows from a dead blow hammer flattened it back out and now it’s as good as new. I’ve got half a mind to remove the remainder of the finish and have a brushed stainless steel bottle, but for now I think I like its distressed character. I also prefer this bottle over SIGG and other similar bottles, as the inside can be scoured, and the threads are very large and round. SIGG (et al)’s fine threads scrape my upper while drinking, and I don’t like having to worry about not scratching the liner.

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Addison Oaks MTB Route in OpenStreetMap

With the upload of OpenStreetMap changeset 12787189 I have finished adding all of the hiking and equestrian trails, intersection markers, and mile markers needed to draw a second generation version of CRAMBA’s Addison Oaks map. This data includes the still-under-construction connector trail which’ll create a new park entrance at Indian Lake and Lake George and provide a safe route to Addison Oaks East and Oakland Township’s Cranberry Lake Park. I also added all of the named routes through the park as found on the official park map, including the specific hiking, biking, and equestrian permissions and restrictions.

If all goes according to plan, the next version of the map will show the actual locations of the C and D trails, shared hike/bike/equestrian (on C only) areas in the west of the park while highlighting the MTB route. The mountain bike route (trail F) frequently crosses these trails and occasionally shares their route, so I want to better illustrate the interplay between them all. This next version will also be based on OpenStreetMap data, which beyond the benefits of being CC BY-SA licensed should make it easier to update and use for future planning.

The only things I have left to add to OpenStreetMap before it’ll be usable for drawing a complete map of the park are a few campground roads and the B loop, a relatively flat and straight hike/bike loop around the campground in the northeast of the park. I’ll probably record that route the next time I’m at the park.

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The Circle of Life

This is the scene on the sidewalk near the front porch: a group of ants eating the remains of a squished cricket full of orange pulp-looking eggs. I wonder if this is the cricket that I’ve been hearing at night when falling asleep.

Nature takes care of its own.

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Fat Biking in The Thumb

Yesterday some friends and I had plans to meet up in the tip of The Thumb to do some fat bike riding, which resulted in two separate rides. For the first, Bob, Rodney, his friend Gary, and I met up near at Danielle’s family’s cabin near Sleeper State Park and rode along both Sand Road and some of the forested dunes near there. This went well, but wasn’t really much different from riding typical sandy two track, and after an hour of this it was time to drive down the road and meet James for some beach riding at a park he’d picked out.

Arriving at Jenks County Park we found a rather nice beach heading in both directions, along with rocky shallows extending quite a ways out into the lake that we could ride on. This worked out quite well for almost two hours of riding, doing everything from super low tire pressure (~5 PSI) plodding along in the sand, riding in the edge of the lake, cruising over dinner plate like slate, and riding in 4-8″ deep water along small boulders. Being on the beach the average temperature for this ride was 97.3°F with the peak up at 102.2°F. The water helped temper this a bit, but it was still hot and very sunny out there.

Riding in the water seems to have been a bit problematic, as my chain is pretty gunked up and resulted in some frame-scratching chain suck that was really frustrating me. Per this article (a pretty authoritative source) this shouldn’t happen even with a dirty chain, so now I have to figure out how to repair (mostly recolor and cover) this damage and keep it from happening in the future.

After riding we chose a restaurant mostly-randomly (based on proximity and sane reviews via Google Maps) and ended up eating at The Farm. While not cheap (entrees were $15 – $30), the food was outstanding. I was quite glad we were able to find a quality restaurant somewhere up north. It was a very nice end to a fun day.

If you’re interested, here is the GPS plot + stats from this ride, and here is a small album of random snapshots taken at various points along the way. There is also this video of James riding his fixed gear Pugsley through the outflow of a river in Port Crescent State Park. It was a bit too deep for him to keep going, as the buoyancy of the tires and thickness of the water seemed to keep him from moving forward once the bike got to the top tube.

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Broken Bell, Punctured Saddle

Tonight in lieu of a ride at Pontiac Lake I stopped off at River Bends on my way home. The ride itself was pretty good and uneventful, except for a sudden fall about 3.5 minutes into my ride, right at the original start of the single track. This is a somewhat loose corner where one has to weave around a tree while entering off of two track, and I did so wrongly, washed out my front wheel, and hit the tree.

I ended up hitting the handlebar with my thigh, breaking off the bell (as seen above), catching my ankle somewhere on the downtube, and landing on my hands/chest. Except for some bruises on my legs I’m just fine, but it was very frustrating. In the process of falling I also tore my (relatively new) saddle, turned the seatpost, and turned the stem a bit. Oh well, at least I’m okay.

Later on in that same ride I came across a deer with new, fuzzy antlers who wouldn’t move off the trail for me. I decided to turn back and go a different way, as I’d rather not have a deer decide it wants to make me move.

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Lumberjack 100 Weekend

This past weekend was Lumberjack 100, the race that I signed up for back in March. For the past three months I’d been riding a lot to try and be ready for it, but I didn’t do enough. After two laps I felt rather beat, and despite Erik and I heading out together on a third lap I gave up about 4-5 miles in, just after all of the hard initial climbing. A light rain had also started at this point and it didn’t help my lack of interest in continuing.

I suspect that the dust, heat, and sandy trail played a part in making it hard, but I think that I just wasn’t properly prepared for what the race entailed. In the end I logged 73 miles, about 27 short of finishing. My quitting was almost entirely due to general fatigue, not any particular soreness. Even the day after the race my legs weren’t sore and just felt a bit tired, and three days later I had no problem riding hard on a single speed. The data from that day can be seen here.

Looking back on it I’m frustrated with myself for not carrying on, but at the time I felt amazingly tired and at the end of the previous lap I’d stopped having fun. Part of me thinks that I could have finished, while the other part of me really isn’t sure. I really wanted to finish, but I didn’t. Maybe I’ll give it another go next year… I’m just not sure I want to do the months of riding again to get ready. At least next time (if there is one) I’ll have a good idea of what I did wrong.

The weekend overall was a really nice time up north with Danielle, Nick, Marty, Erik, and Kristi. Without them I wouldn’t have even made it up there. From the super-fun long rides to keeping me excited about it, from cool weather dirt road rides to fat biking in the snow they, along with many other friends, played a huge part in keeping me going to even try the race. They are great.

The day after the race, after we’d all had breakfast at Dagmar’s Kozy Kitchen (yes, it looks weird, but they have good food) and parted ways, I took a few detours on the way home. My first stop was at the Mortimer E. Cooley Bridge over the Pine River along M-55 just east of Wellston. This somewhat historic bridge (seen above and also here) was quite nifty to see. I’d driven over it a number of times previously and realized just how high it was, but had neve stopped to look.

There are some rather nice wood and metal stairways leading down to platforms along and beneath the bridge, specifically to allow for easy viewing. While nicely maintained, the foliage along the stairways could use a bit of a trim as much of it was poison ivy growing up through the slats (photo). I had to tread carefully to avoid stepping on any, as squishing it against the metal grating would surely leave uruishol on my shoes, leading to it ending up all over the car, house, etc. That’d be bad.

Finally, after visiting the bridge I headed over to Cops & Doughnuts in Clare, a surprisingly good bakery from which I purchased a doughnut (apple fritter) and coffee for myself, and a cinnamon roll which I dropped off with my dad on the way home. Being Father’s Day I wanted to be sure to stop by there. It was surprisingly easy to get to their house on the way home, so that worked out well.

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MTB Trail Mapping Workflow with OpenStreetMaps

With recent map drawing activities (1, 2, 3) I’ve been asked about the process I use for creating maps. What follows here is the workflow I used with OpenStreetMap (OSM) for the CRAMBA Stony Creek MTB Trail Maps, and hopefully others will find it useful.

I expect I’ll be following this same workflow for the next maps created, and even possibly revising previous ones using this process because it provides more solid base data than my previous method which consisted of little more than manually tracing SVGs of GPS tracks in Illustrator. It also helps get more map data in OSM, which is basically the cartographic version of Wikipedia.

One note, using OSM data in your maps requires that the resulting map be licensed under the Creative Commons Attribution-ShareAlike 2.0 Generic (CC BY-SA 2.0) license. This basically means that anyone else can redistribute and reuse the map (or portions thereof), as long as they provide appropriate attribution and license their version in a similar way. As I’m intending these maps to be freely used by the general public (as part of my work with CRAMBA) I’m happy to do so, but others should be aware of these restrictions before getting too far along in the process.

Here’s the workflow:

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New Stony Creek MTB Trail Maps

I’ve been unhappy with Stony Creek’s official mountain bike trail map for a while now, as its routing is a bit physically inaccurate and missing some trails used during races. This led me to want to draw my own, and with recent forays into OpenStreetMap proving quite successful I’ve been able to get working on the map itself.

Tonight everything came together and I was finally able to publish the maps, and as a bonus I also documented three of the more popular routes. The more-formal announcement for these was made over on CRAMBA.org, but each map can also be seen here:

· Regular Map
· Fun Promotions 6 & 12 Hour Race Route
· Tailwind XC Race Route
· Wednesday Night MMBA / CRAMBA Group Ride Route

I’m sure some changes will be needed down the line, but for now I’m quite happy with how they came out. Making maps is fun.

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