{
  "date": "2026-10-29",
  "status": "qualified_horizontal_spot_check",
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      "key": "A",
      "lift": "Kensho SuperChair",
      "terminal": "top",
      "offset_m": 6.7,
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      "key": "B",
      "lift": "Kensho SuperChair",
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        -106.0881057,
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    },
    {
      "key": "C",
      "lift": "Independence SuperChair",
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      "offset_m": 7.5,
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      "key": "D",
      "lift": "Independence SuperChair",
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    {
      "key": "E",
      "lift": "Colorado SuperChair",
      "terminal": "top",
      "offset_m": 12.3,
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        -106.085219,
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    {
      "key": "F",
      "lift": "Colorado SuperChair",
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      "offset_m": 2.6,
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      "published_lonlat": [
        -106.067956,
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    },
    {
      "key": "G",
      "lift": "Imperial SuperChair",
      "terminal": "top",
      "offset_m": 6.5,
      "reference_lonlat": [
        -106.10122608055148,
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      "published_lonlat": [
        -106.101293,
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    },
    {
      "key": "H",
      "lift": "Imperial SuperChair",
      "terminal": "bottom",
      "offset_m": 5.8,
      "reference_lonlat": [
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      "published_lonlat": [
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    },
    {
      "key": "I",
      "lift": "Falcon SuperChair",
      "terminal": "top",
      "offset_m": 4.6,
      "reference_lonlat": [
        -106.07445632872634,
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      "published_lonlat": [
        -106.074406,
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    },
    {
      "key": "J",
      "lift": "Falcon SuperChair",
      "terminal": "bottom",
      "offset_m": 5.9,
      "reference_lonlat": [
        -106.05814235047593,
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      "published_lonlat": [
        -106.05808,
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    },
    {
      "key": "K",
      "lift": "Horseshoe Bowl T-Bar",
      "terminal": "top",
      "offset_m": 3.4,
      "reference_lonlat": [
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    {
      "key": "L",
      "lift": "Horseshoe Bowl T-Bar",
      "terminal": "bottom",
      "offset_m": 7.1,
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        -106.08433524483513,
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        -106.0842595,
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    {
      "key": "M",
      "lift": "BreckConnect Gondola",
      "terminal": "bottom",
      "offset_m": 8.3,
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      "published_lonlat": [
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    },
    {
      "key": "N",
      "lift": "Rocky Mountain SuperChair",
      "terminal": "top",
      "offset_m": 2.0,
      "reference_lonlat": [
        -106.08543575588399,
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        -106.085448,
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    },
    {
      "key": "O",
      "lift": "Mercury SuperChair",
      "terminal": "top",
      "offset_m": 1.2,
      "reference_lonlat": [
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        -106.081157,
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    },
    {
      "key": "P",
      "lift": "Mercury SuperChair",
      "terminal": "bottom",
      "offset_m": 3.3,
      "reference_lonlat": [
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  "terminal_count": 16,
  "lift_count": 9,
  "median_landmark_separation_m": 5.85,
  "maximum_landmark_separation_m": 12.3,
  "review_tolerance_m": 25,
  "run_corridors_visually_checked": 9,
  "run_segments_visually_checked": 15,
  "lift_rise_comparisons": [
    {
      "name": "BreckConnect Gondola",
      "official_rise_m": 121,
      "model_rise_m": 116.5,
      "difference_m": -4.5,
      "endpoint_elevations_m": [
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        3029.2
      ]
    },
    {
      "name": "Colorado SuperChair",
      "official_rise_m": 404,
      "model_rise_m": 400.7,
      "difference_m": -3.3,
      "endpoint_elevations_m": [
        3033.4,
        3434.1
      ]
    },
    {
      "name": "QuickSilver SuperChair",
      "official_rise_m": 193,
      "model_rise_m": 192.7,
      "difference_m": -0.3,
      "endpoint_elevations_m": [
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        3129.0
      ]
    },
    {
      "name": "Falcon SuperChair",
      "official_rise_m": 428,
      "model_rise_m": 427.1,
      "difference_m": -0.9,
      "endpoint_elevations_m": [
        3107.6,
        3534.7
      ]
    },
    {
      "name": "Independence SuperChair",
      "official_rise_m": 402,
      "model_rise_m": 425.2,
      "difference_m": 23.2,
      "endpoint_elevations_m": [
        3049.7,
        3474.9
      ]
    },
    {
      "name": "Kensho SuperChair",
      "official_rise_m": 468,
      "model_rise_m": 468.6,
      "difference_m": 0.6,
      "endpoint_elevations_m": [
        3280.1,
        3748.7
      ]
    },
    {
      "name": "Freedom Superchair",
      "official_rise_m": 316,
      "model_rise_m": 313.2,
      "difference_m": -2.8,
      "endpoint_elevations_m": [
        3169.9,
        3483.2
      ]
    },
    {
      "name": "Zendo Chair",
      "official_rise_m": 97,
      "model_rise_m": 96.2,
      "difference_m": -0.8,
      "endpoint_elevations_m": [
        3208.7,
        3304.8
      ]
    },
    {
      "name": "Peak 8 SuperConnect",
      "official_rise_m": 434,
      "model_rise_m": 432.9,
      "difference_m": -1.1,
      "endpoint_elevations_m": [
        3001.7,
        3152.4,
        3152.4,
        3434.6
      ]
    },
    {
      "name": "Beaver Run SuperChair",
      "official_rise_m": 485,
      "model_rise_m": 484.9,
      "difference_m": -0.1,
      "endpoint_elevations_m": [
        2960.2,
        3445.1
      ]
    },
    {
      "name": "Mercury SuperChair",
      "official_rise_m": 447,
      "model_rise_m": 446.8,
      "difference_m": -0.2,
      "endpoint_elevations_m": [
        3060.2,
        3507.0
      ]
    },
    {
      "name": "Rocky Mountain SuperChair",
      "official_rise_m": 380,
      "model_rise_m": 369.7,
      "difference_m": -10.3,
      "endpoint_elevations_m": [
        3033.3,
        3403.0
      ]
    },
    {
      "name": "Imperial SuperChair",
      "official_rise_m": 286,
      "model_rise_m": 285.9,
      "difference_m": -0.1,
      "endpoint_elevations_m": [
        3627.7,
        3913.6
      ]
    },
    {
      "name": "Rip's Ride",
      "official_rise_m": 93,
      "model_rise_m": 92.7,
      "difference_m": -0.3,
      "endpoint_elevations_m": [
        3040.1,
        3132.8
      ]
    },
    {
      "name": "FIVE SuperChair",
      "official_rise_m": 302,
      "model_rise_m": 215.6,
      "difference_m": -86.4,
      "endpoint_elevations_m": [
        3036.3,
        3251.8
      ]
    },
    {
      "name": "A-Chair",
      "official_rise_m": 189,
      "model_rise_m": 187.4,
      "difference_m": -1.6,
      "endpoint_elevations_m": [
        3026.6,
        3214.0
      ]
    },
    {
      "name": "C-Chair",
      "official_rise_m": 382,
      "model_rise_m": 383.1,
      "difference_m": 1.1,
      "endpoint_elevations_m": [
        3037.9,
        3420.9
      ]
    },
    {
      "name": "E-Chair",
      "official_rise_m": 296,
      "model_rise_m": 293.5,
      "difference_m": -2.5,
      "endpoint_elevations_m": [
        3225.7,
        3519.2
      ]
    },
    {
      "name": "6-Chair",
      "official_rise_m": 302,
      "model_rise_m": 301.1,
      "difference_m": -0.9,
      "endpoint_elevations_m": [
        3345.8,
        3646.9
      ]
    },
    {
      "name": "Snowflake",
      "official_rise_m": 192,
      "model_rise_m": 191.4,
      "difference_m": -0.6,
      "endpoint_elevations_m": [
        2959.6,
        3150.9
      ]
    },
    {
      "name": "Horseshoe Bowl T-Bar",
      "official_rise_m": 376,
      "model_rise_m": 373.0,
      "difference_m": -3.0,
      "endpoint_elevations_m": [
        3348.0,
        3721.0
      ]
    }
  ],
  "rise_comparisons_within_5m": 18,
  "recent_lifts": [
    {
      "name": "FIVE SuperChair",
      "reference_only": true,
      "service": "https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer",
      "metadata": {
        "OBJECTID": "1543917",
        "Shape": "Polygon",
        "DATE (YYYYMMDD)": "20250727",
        "RESOLUTION (M)": "0.34",
        "ACCURACY (M)": "8.47",
        "DESCRIPTION": "LG03",
        "SOURCE_INFO": "Vivid",
        "SOURCE": "Vantor",
        "SRC_DATE2": "7/27/2025",
        "MinMapLevel": "12",
        "MaxMapLevel": "19",
        "DrawOrder": "80",
        "BlockName": "DYNAMIC_ESRI_50_US20_25Q4",
        "ReleaseName": "Raster Basemaps 2026.R02"
      },
      "visual_result": "Corridor and terminal areas consistent with mapped lift; qualitative review, no coordinates traced."
    },
    {
      "name": "Rip's Ride",
      "reference_only": true,
      "service": "https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer",
      "metadata": {
        "OBJECTID": "1543917",
        "Shape": "Polygon",
        "DATE (YYYYMMDD)": "20250727",
        "RESOLUTION (M)": "0.34",
        "ACCURACY (M)": "8.47",
        "DESCRIPTION": "LG03",
        "SOURCE_INFO": "Vivid",
        "SOURCE": "Vantor",
        "SRC_DATE2": "7/27/2025",
        "MinMapLevel": "12",
        "MaxMapLevel": "19",
        "DrawOrder": "80",
        "BlockName": "DYNAMIC_ESRI_50_US20_25Q4",
        "ReleaseName": "Raster Basemaps 2026.R02"
      },
      "visual_result": "Corridor and terminal areas consistent with mapped lift; qualitative review, no coordinates traced."
    },
    {
      "name": "Freedom Superchair",
      "reference_only": true,
      "service": "https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer",
      "metadata": {
        "OBJECTID": "1543917",
        "Shape": "Polygon",
        "DATE (YYYYMMDD)": "20250727",
        "RESOLUTION (M)": "0.34",
        "ACCURACY (M)": "8.47",
        "DESCRIPTION": "LG03",
        "SOURCE_INFO": "Vivid",
        "SOURCE": "Vantor",
        "SRC_DATE2": "7/27/2025",
        "MinMapLevel": "12",
        "MaxMapLevel": "19",
        "DrawOrder": "80",
        "BlockName": "DYNAMIC_ESRI_50_US20_25Q4",
        "ReleaseName": "Raster Basemaps 2026.R02"
      },
      "visual_result": "Corridor and terminal areas consistent with mapped lift; qualitative review, no coordinates traced."
    }
  ],
  "geometry_consistency": {
    "max_endpoint_roundtrip_error_m": 0.006770071146515259,
    "terrain_mesh_residual_percentiles_m": {
      "median": 0.32394666666664307,
      "p95": 1.832098000000013,
      "p99": 3.115212899999947,
      "max": 9.035633333333521
    },
    "run_samples": 14380
  },
  "limits": [
    "Sampled landmarks, not survey control or full trail-edge verification.",
    "Learning carpets and platter lift coordinates are not independently signed off.",
    "Three operator-versus-model rise differences remain documented; no terrain was distorted to match them.",
    "Widths, vegetation, buildings and hardware are illustrative; operation and snow cover are not verified."
  ]
}