725.35 ft project datum (NGVD29-era)
level 2.4 ft above full pool — typical for mid-August
Reading comes straight from U.S. Army Corps of Engineers Access to Water data (USACE series KEYS.Elev.Inst.1Hour.0.Ccp-Rev) and updates live when you load this page.
Keystone Lake through the year
The band is the lake's own normal: where the level has run on each calendar day, 2014–2026. The summer drawdown — and how this year sits in it — shows up without reading a single number.
This year vs the years that matter
This year's trace against last year and the driest and wettest years on record — the drought-context question every lake regular asks.
- 2019 (wettest on record)
- 2023 (driest on record)
- 2025 (last year)
- 2026 (this year)
Full pool, datum, and the gauge
"Full pool" here means the conservation pool — the level the lake is designed to hold for water supply and recreation, not the flood-control space above it. The full explainer covers flood pool and dead pool too.
| Full pool | 723.00 ft project datum (NGVD29-era) · per USACE Tulsa District (SWT) full-pool reference |
|---|---|
| Gauge | USACE series KEYS.Elev.Inst.1Hour.0.Ccp-Rev · U.S. Army Corps of Engineers Access to Water data |
| Datum | project datum (NGVD29-era) — Top of conservation 723.0 per SWT lakepage. |
| Last verified | August 15, 2026 |
LakeDates reports lake level, not ramp status. Whether a given ramp or marina is usable at this level varies ramp by ramp — call the marina before you tow.
Quick answers
How full is Keystone Lake right now?
Keystone Lake is at 725.35 ft (project datum (NGVD29-era)) as of August 15, 2026 — 2.4 ft above full pool — typical for mid-August
Is Keystone Lake full?
Yes and then some — at 725.35 ft, Keystone Lake is 2.4 ft above its full pool of 723.00 ft (project datum (NGVD29-era)), using flood storage.
What is full pool for Keystone Lake?
Full pool (the conservation pool) for Keystone Lake is 723.00 ft project datum (NGVD29-era), per USACE Tulsa District (SWT) full-pool reference. Levels above it use flood storage; levels below it are drawdown.