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🛰 Reservoir Levels

Storage estimates from satellite imagery · Updated twice weekly

Last updated: 2026-06-26

How do we estimate reservoir levels? ›

System Total 59% full ~38,994 / 65,637 AF

Current Estimates

Fossil Creek Res

Approximate
~67% ~7,913 / 11,740 AF

Likely between 5,110–10,580 AF

📡 Image date: 2026-06-13  ·  305 acres water visible

vs. 2026-06-13 image: ⇨ similar to 7,913 AF

📋 Last official reading: 722 AF — 1955-11

Park Creek Res

Rough estimate
~37% ~3,862 / 10,393 AF

Likely between 2,319–5,814 AF

📡 Image date: 2026-06-19  ·  108 acres water visible

vs. 2026-06-19 image: ⇨ similar to 3,862 AF

📋 Last official reading: 7,275 AF — 1976-03

NP Res 6

Approximate
~68% ~6,774 / 9,968 AF

Likely between 4,651–8,155 AF

📡 Image date: 2026-06-06  ·  0 acres water visible

vs. 2026-06-06 image: ⇨ similar to 6,774 AF

📋 Last official reading: 405 AF — 1956-08

NP Res 5

Rough estimate
~69% ~4,620 / 6,707 AF

Likely between 1,734–4,941 AF

📡 Image date: 2026-06-19  ·  652 acres water visible

vs. 2026-06-19 image: ⇨ similar to 4,620 AF

📋 Last official reading: 5,334 AF — 1958-08

NP Res 16 Halligan

Rough estimate
~100% ~6,428 / 6,440 AF

Likely between 2,122–6,428 AF

📡 Image date: 2026-06-19  ·  101 acres water visible

vs. 2026-06-19 image: ⇨ similar to 6,428 AF

📋 Last official reading: 1,582 AF — 1956-01

NP Res 15

Rough estimate
~6% ~342 / 5,579 AF

📡 Image date: 2026-06-19  ·  91 acres water visible

vs. 2026-06-19 image: ⇨ similar to 342 AF

📋 Last official reading: 662 AF — 1956-01

NP Res 2

Rough estimate
~75% ~2,901 / 3,854 AF

Likely between 2,409–3,074 AF

📡 Image date: 2026-06-19  ·  258 acres water visible

vs. 2026-06-19 image: ⇨ similar to 2,901 AF

📋 Last official reading: 1,779 AF — 1956-05

NP Res 3

Rough estimate
~68% ~2,188 / 3,227 AF

Likely between 1,321–2,413 AF

📡 Image date: 2026-06-19  ·  339 acres water visible

vs. 2026-06-19 image: ⇨ similar to 2,188 AF

📋 Last official reading: 506 AF — 1956-08

NP Res 1 Miners Lake

Rough estimate
~16% ~314 / 1,985 AF

Likely between 268–359 AF

📡 Image date: 2026-06-19  ·  5 acres water visible

vs. 2026-06-19 image: ⇨ similar to 314 AF

📋 Last official reading: 1,153 AF — 1976-12

Indian Creek Res

Approximate
~83% ~1,585 / 1,909 AF

Likely between 1,257–1,799 AF

📡 Image date: 2026-06-06  ·  124 acres water visible

vs. 2026-06-06 image: ⇨ similar to 1,585 AF

📋 Last official reading: 361 AF — 1955-11

NP Res 4

Rough estimate
~70% ~1,094 / 1,563 AF

Likely between 1,000–1,376 AF

📡 Image date: 2026-06-19  ·  150 acres water visible

vs. 2026-06-19 image: ⇨ similar to 1,094 AF

📋 Last official reading: 115 AF — 1955-11

Smith Lake Boxelder Res 3

Rough estimate
~15% ~192 / 1,309 AF

Likely between 174–248 AF

📡 Image date: 2026-06-19  ·  306 acres water visible

vs. 2026-06-19 image: ⇨ similar to 192 AF

📋 Last official reading: 168 AF — 1981-10

NP Res 12 Upper Clark

Approximate
~81% ~780 / 963 AF

Likely between 368–900 AF

📡 Image date: 2026-06-06  ·  82 acres water visible

vs. 2026-06-06 image: ⇨ similar to 780 AF

📋 Last official reading: 578 AF — 1976-08

These are estimates, not official measurements. Satellite imagery gives us a good general picture of reservoir levels between official readings, but real-world conditions (clouds, snow on the ground, reservoir shape) can affect accuracy. For official water records, contact NPIC at (970) 568-3612 or the Colorado Division Engineer, District 3 (Greeley, 970-352-8712).

Learn how we make these estimates ›