Transfer of data from myMaps.google version of my Oak Street Hill Challenge. Part of Woodside STEM mentoring at WOW and Fifth-grade project-based learning.

OakStHillChallenge.geojson

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9757165,
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          0
        ]
      },
      "properties": {
        "name": "2016-1-27",
        "description": "Another slow and deliberate attempt to challenge. I rode to Brunswick for warm-up then climbed Bridge Street, and u-turn at Maple St. I got through the stumble spots at the top and thought I would get it this time. But stalled a few yards short of the goal.\n",
        "date": 1453928400000000,
        "lat": null,
        "lon": null
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9755891,
          43.9215656,
          0
        ]
      },
      "properties": {
        "name": "2016-1-25 Almost",
        "description": "After time off (snow and extreme cold), the weather broke and plows and cars took Oak St down to bare pavement (except for some sand patches). So, I rode to Woodside to warm up. Picked up a spare seat post to make a stand for motion analysis. I tried the challenge. Felt great and I thought I might make it but lost it on subtle slope changes in the top 10 yards. \n",
        "date": 1453753800000000,
        "lat": null,
        "lon": null
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9755797,
          43.921556,
          0
        ]
      },
      "properties": {
        "name": "2016-1-12 ",
        "description": "Slow ascent with focus on keeping momentum. Felt like I was going to make it onto decreasing slope.\n",
        "date": 1452625200000000,
        "lat": 43.92155,
        "lon": -69.97557
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9753061,
          43.9215173,
          0
        ]
      },
      "properties": {
        "name": "2016-1-10 Slow ascent",
        "description": "Attempting slow ascent with focus on using tangential forces to maintain momentum through top-dead-center. Could feel the difference in speed but not in the effectiveness of tangential forces. \n",
        "date": 1452402000000000,
        "lat": 43.92151,
        "lon": -69.9753
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9753276,
          43.92152310000001,
          0
        ]
      },
      "properties": {
        "name": "2016-1-3",
        "description": "New Year trial. @37F. Started well but frost heaving added some unexpected changes in obstacles. \n",
        "date": 1451779200000000,
        "lat": 43.92152,
        "lon": -69.97532
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9753141,
          43.9215309,
          0
        ]
      },
      "properties": {
        "name": "2015-12-24",
        "description": "After a few days of rain and working on gyrometry, I tried the challenge again and fell short. Worked on stable cadence at higher rates than required, e. g., all the way up Bridge Street to Oak St. \n",
        "date": 1451001600000000,
        "lat": 43.92153,
        "lon": -69.97531
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9750111,
          43.9214903,
          0
        ]
      },
      "properties": {
        "name": "2015-12-21 Gyro",
        "description": "Collected gyro data from drive at Prospect up Oak to this point documented with photo on iPhone. Data file for this run is SD_12_21_151116.csv 40.kb  The file includes relative timestamp and simple gyro data.\n",
        "date": 1450742400000000,
        "lat": 43.92149,
        "lon": -69.97501
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9758291,
          43.9215811,
          0
        ]
      },
      "properties": {
        "name": "2015-12-18 b Success 3",
        "description": "After missing on the first attempt, I walked down and rode to Maple-Bridge intersection and tried again. While I lost speed 30-20 from the top, I powered through and made it. Documented with a selfie video: panning from the view of Oak to the Water Tower.\n",
        "date": 1450396800000000,
        "lat": 43.92158,
        "lon": -69.97582
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9743539,
          43.9213976,
          0
        ]
      },
      "properties": {
        "name": "2015-12-18 Fell short",
        "description": "Warmed up and tried to climb but faultered at  bumps and slippery pedals. (not raining but sufficient moisture to cause slipping)\n",
        "date": 1450396800000000,
        "lat": 43.92139,
        "lon": -69.97435
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9758264,
          43.9215946,
          0
        ]
      },
      "properties": {
        "name": "2015-12-16 Success2",
        "description": "By focusing on speed climbing the first half of the challenge, I got to the half-way mark at the desired cadence. Slowed as the headwind came over the crest of the hill but I was able to power through despite the deceleration. Documented as 'shadow selfies' on the iPhone. Temp: 38-39 deg F. Did not sear my lungs as in last week's attempt.\n",
        "date": 1450278600000000,
        "lat": 43.92159,
        "lon": -69.97582
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9752752,
          43.9215212,
          0
        ]
      },
      "properties": {
        "name": "2015-12-15",
        "description": "Attempt after rereading about climbing hills ( Bicycling Science  pp 32, and 236 ). Theory seems to help awareness but I cannot yet execute well enough to reach the goal again. Documentation: photo on iphone of shadow on pavement. Training: start up the last several yards up Prospect to get rid of the momentum advantage of driveway starts. The two more challenge attempts to do the goal task rather than substitute.\n",
        "date": 1450224000000000,
        "lat": 43.92152,
        "lon": -69.97527
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9755891,
          43.9215656,
          0
        ]
      },
      "properties": {
        "name": "2015-12-14",
        "description": "Another attempt to beat the challenge. Need to focus on pacing. Followed unsuccessful attempt by three cycles of starting from the blue star and walked down to see whether descent is the challenge for knees. Then, I moved down hill to start the challenge from the next lower driveway (south side of Oak St.). Successfully rode to the top from there, too.",
        "date": null,
        "lat": 43.92156,
        "lon": -69.97558
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9755448,
          43.9215463,
          0
        ]
      },
      "properties": {
        "name": "2015-12-13",
        "description": "Repeat the successful climb? No. Felt myself lose the necessary drive and could not recover it. Need to learn more consistency. Documentation: selfie on iPhone. Chose not to track. Followed the attempt by a series of three loops down to the driveway and back up to the top with slow descents to recover. Then rode to Swinging Bridge, up Bridge Street, to Riverwalk and then back up Bridge Street.\n",
        "date": null,
        "lat": 43.92155,
        "lon": -69.97554
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9758238,
          43.921612,
          0
        ]
      },
      "properties": {
        "name": "2015-12-10 Success!",
        "description": "Rode all the way to the top of the paved section. Warmed up on Bridge Street and then leaned into the slope and applied just enough to get to the next power cycle. ",
        "date": 1449705600000000,
        "lat": 43.92161,
        "lon": -69.97582
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9755475,
          43.9215598,
          0
        ]
      },
      "properties": {
        "name": "2015-12-8",
        "description": "Four-fifths of the way. After learning the strategy to lean into the slope and stay on the seat to drive through to the next power cycle. Documentation: picture on Galaxy of cycle location.\n",
        "date": null,
        "lat": 43.92155,
        "lon": -69.97554
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9747884,
          43.921471,
          0
        ]
      },
      "properties": {
        "name": "2015-11-19",
        "description": "Challenge conditioning but no PR.\n",
        "date": null,
        "lat": null,
        "lon": null
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9750566,
          43.9215,
          0
        ]
      },
      "properties": {
        "name": "2015-11-15 w/ POW",
        "description": "Riding with Portland One Wheelers. Talked with Benjamin as we climbed. Then ran to congratulate him on making it to the top.\n",
        "date": 1450224000000000,
        "lat": 43.9215,
        "lon": -69.97505
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.975341,
          43.921528,
          0
        ]
      },
      "properties": {
        "name": "2015-11-??",
        "description": "Challenge test PR. Before considering the role of momentum to drive through to the next power cycle. Documentation: ... Search for documentation after returning the Garmin system.\n",
        "date": null,
        "lat": null,
        "lon": null
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.975219,
          43.9215637,
          0
        ]
      },
      "properties": {
        "name": "2015-11-14 GH Challenge Hypothesis\n",
        "description": "This run tests the hypothesis that the upper part of the challenge is too difficult at my present skill level. The linked run demonstrates that I can make the grade. https://connect.garmin.com/activity/embed/956769715\n",
        "date": null,
        "lat": 43.92158,
        "lon": -69.97522,
        "gx_media_links": "https://lh5.googleusercontent.com/proxy/TMTpb3r4JyVDdX3jY6GNcxeTjBsSMFGlVKQLoKoDaqJqrfuuWBHn9aum85Wh2YKHUbhlGXGARWqrSerJoy_7EWVlJyovilOsMNTdBFK6bnxczul-w_h4GLX4lHzmHWDmG0GGkLAfWWqSycKFd-BWSeiJr9GPq4Lf9f4hJgybNy7P2iMoNLPQmEgkaOAD"
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9751103,
          43.9215077,
          0
        ]
      },
      "properties": {
        "name": "2015-11-10",
        "description": "Challenge training. Documentation: Garmin Connect trace.\n",
        "date": null,
        "lat": null,
        "lon": null
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9745792,
          43.9214633,
          0
        ]
      },
      "properties": {
        "name": "2015-11-6b",
        "description": "Second training run using the route function. Documentation: Garmin Connect.\n",
        "date": null,
        "lat": null,
        "lon": null
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9745256,
          43.9214265,
          0
        ]
      },
      "properties": {
        "name": "2015-11-6a",
        "description": "Experimenting with Route function on Garmin.\n",
        "date": null,
        "lat": null,
        "lon": null
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9752887,
          43.9215241,
          0
        ]
      },
      "properties": {
        "name": "2015-11-2",
        "description": "Personal record during practice that included three attempts at the challenge. Documentation: Garmin Connect.\n",
        "date": null,
        "lat": null,
        "lon": null
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9752015,
          43.9215116,
          0
        ]
      },
      "properties": {
        "name": "2015-10-29\n",
        "description": "New personal record for Challenge. Documentation: Garmin Connect trace.\n",
        "date": null,
        "lat": null,
        "lon": null
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9748152,
          43.9214565,
          0
        ]
      },
      "properties": {
        "name": "2015-10-24 w/ CC\n",
        "description": "Garmin Connect run with new watch. And triathlete as partner. https://www.facebook.com/groups/748027581987064/permalink/775271199262702/?comment_id=775398939249928",
        "date": 1445731200000000,
        "lat": 43.92145,
        "lon": -69.97481
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9745899,
          43.9214314,
          0
        ]
      },
      "properties": {
        "name": "2015-10-15 \n",
        "description": "Garmin Connect training run.\n",
        "date": 1444867200000000,
        "lat": null,
        "lon": null
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.97413130000001,
          43.9213879,
          0
        ]
      },
      "properties": {
        "name": "2015-10-13 Pitfalls\n",
        "description": "Destabilizing dips between this point and Prospect Street. Need to avoid. Start of GH Models of Success Project.\n",
        "date": 1447459200000000,
        "lat": 43.92138,
        "lon": -69.97413
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9738523,
          43.9213406,
          0
        ]
      },
      "properties": {
        "name": "Start of 0.1 mile",
        "description": "528 feet (as measured with MyMap Google tool) below the top of the paved section of Oak Street Challenge. \n",
        "date": null,
        "lat": 43.92134,
        "lon": -69.97385
      }
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -69.9729806,
          43.9212527,
          0
        ]
      },
      "properties": {
        "name": "Oak St. Challenge Start",
        "description": "Start of the Oak Street Climb Challenge. \n",
        "date": 1444435200000000,
        "lat": 43.92125,
        "lon": -69.97298
      }
    }
  ]
}

Exported this subset of my data for my map of the Oak Street Hill Challenge. When I tried initially it defaulted to KMZ so I accepted it but GeoJSON.io did not recognize the file type. Then I switched to KML and it saved as text file that it recognized and produced the GeoJSON map and then this version in GitHub. Still working out some details like the date property which shows up in the geojson.io data table as a many digit integer which I suspect is the number of seconds since an arbitrary date that Apple OSX engineers determined was an appropriate starting point.