Dujiangyan Qingcheng Back Mountain Climb
The Qingcheng Back Mountain climb lies in the forested hills of Dujiangyan near Chengdu. It is verified with Strava mother segment 16510148 and 638 high-resolution distance and coordinate points. The API incorrectly reports 413.4 m of gain and the raw device altitude is heavily jagged. Keeping every trace point, monotonic isotonic regression and smoothing produce a reliable 3.98 km with 202 m of gain and about 12.5 percent over the steepest 100 m. The formal three-piece split combines a mother-terrain opening, genuine segment 5614076 and a mother-terrain finish, with zero gaps. It is a public visitor road, so check Dujiangyan closures during storms, rockfall or works.
Route Map
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Segment Breakdown
This route is fully covered by the segments below (including flats and descents) — Tap a row to highlight it on the profile above; segments linked to Strava open directly.
| # | Grade | Segment | Start | Length | Avg Grade | Max Grade | Gain | Summit Elev. |
|---|---|---|---|---|---|---|---|---|
| 1 | 爬坡段 | — | 0 km | 1.1 km | 5% | 12% | 54 m | 799 m |
| 2 | 4 級坡 | N18 County Road Climb | 1.09 km | 1.2 km | 7.7% | 12.5% | 96 m | 894 m |
| 3 | 爬坡段 | — | 2.34 km | 1.6 km | 3.2% | 8% | 53 m | 946 m |
Route Overview
路線概覽
本路線以 Strava 實段 青城後山（segment 16510148）驗證。canonical API 記錄 3,979.9 公尺、平均 5.1%，但摘要爬升 413.4 公尺明顯錯誤；638 點 high-res 串流首尾為約 743 至 947 公尺，原始高度有 461 公尺假上升與 257 公尺假下降。保留所有距離與座標後，以單調等序回歸及平滑修正鋸齒，正式重算為 3.98 公里、爬升 202 公尺、無下降，100 公尺最大坡度約 12.5%。
路線位於都江堰青城後山周邊的鋪裝山路，並非景區步道。頁面僅呈現 Strava 母段，不把青城前山、趙公山或附近越野路線混入；景區入口、道路施工與天候管制仍應以現場公告為準。
Route data is calculated from GPS tracks; text content is curated by our team. Actual conditions may vary. Last updated: 2026-08-18