Castersen Seep
34.09059, -111.46653
Reported this seasonlast reported 3 months ago
How this site decides what it can and cannot say — the method.
Insufficient record
No read issued
9 reports — a correlation needs at least 10 before it means anything, so no read is issued here.
What people saw
9 observations between 2017-09-01 and 2026-06-30, ranging from dry to raging. Most recently dry, 3 months ago.
These are the observations themselves, not a forecast. Too few to correlate against rainfall, but they are what people actually found.
Somebody found this completely dry. A source that has been dry can be dry again, whatever the rest of the record says.
- 2026-06-30Dry0.0
- 2026-05-15Trickle0.4Several deep pools filled with good water, trickle going over the falls.
- 2025-12-06Strong0.8Lots of water, including along the feeder creeks.
- 2025-11-28Raging1.0Heavy flow down both creeks feeding into the area, water everywhere.
- 2025-10-16Raging1.0Tons of water flowing down both creeks, plus there was a surprise seep seeping, tasted wonderful.
- 2025-05-24Pools or dripping0.2Less water flowing from pool to pool than in Apr, still enough clear water to scoop around the algae.
- 2025-04-25Moderate0.6Several algea-filled pools directly below the seep, trickling into larger, clear rock tanks that tasted... okay.
- 2018-06-03Pools or dripping0.2Few tanks below still had water, though they were opaque.
- 2017-09-01Pools or dripping0.2Well, the seep proper was dry, but there were tanks downstream that held water.
Why
The engine will still produce a number from 9 reports, and that number is noise. It will happily report a perfect correlation from two observations. On a screen where someone is deciding how much water to carry, that is the most dangerous thing this site could render, so it is not rendered.
1 more report would reach the 10 needed for a read.
Rainfall here
The last 60 days here have been wetter than usual for mid September — 84th percentile against 19 years of rainfall at this coordinate, through 2026-09-15.
This is rainfall, not water. It says what the weather has done here, not what is in the ground — a spring fed from deep water can run through a dry autumn, and a runoff channel can be empty two weeks after a wet one. Which of those this is takes reports to find out.
5.73″ over 60 days, against 19 years at this coordinate. Band: wetter.
Nearest source with a record
Big Kahuna Falls - Mazatzal Wilderness 0.81 mi away 17 reports
This is a neighbour, not a substitute. Two sources this close can behave completely differently — one fed by groundwater that barely notices the weather, the other by runoff that is gone a week after the storm. Read it for the shape of the country, not as a proxy for this water.
This is the fix
Every dated observation moves this source closer to a read, and sharpens the ones around it too.