Dulas Brook
The only gauge on the Dulas Brook is low and steady.
Read from one river-level gauge at 11:45 on 28 October 2026 GMT, and read again every fifteen minutes.
See the Dulas Brook on the live map →Every gauge on the Dulas Brook, right now
| Gauge | km above the mouth |
Level now |
Against its record |
Percentile | Trend |
|---|---|---|---|---|---|
| Ewyas Haroldnear Callowside | 2 | 0.06 mASD | Low | 1st | ▬steady |
The percentile is where a gauge's latest reading sits in its own record of readings, not how full the channel is. A river sits low most of the time, so a high percentile takes surprisingly little water: at Beddgelert on the Glaslyn, with thirty-six years of record, the ninety-fourth percentile is about 1.05 m - 1.38 m below the highest level ever recorded there.
The course of the Dulas Brook
About this river
From its highest reach down to its mouth near Pontrilas, the Dulas Brook runs 132 km. The course above is drawn in two weights: the bright line is where Ordnance Survey Open Rivers calls the channel the Dulas Brook, and the faint line, about 14 km of it, is the same water running under another name, past a lake or a weir pool. Its gauge holds 5 years of readings, and that is what today's level is compared with.