Notice: A map-based version currently in development will be released soon.
ReservoirLocation% FullSWE % of AvgFull Capacity (kaf)Total Capacity (kaf)Outflow (cfs)
Angostura ReservoirSD89n/a1231231
Alcova ReservoirWY85n/a184184504
Lake AltusOK39n/a1291490
Lake Alice ReservoirNE1n/a1111n/a
Arbuckle ReservoirOK96n/a72108n/a
Buffalo Bill ReservoirWY7495647647313
Bighorn Lake (Yellowtail)MT830101112792866
Box Butte ReservoirNE58n/a2929n/a
Belle Fourche ReservoirSD89n/a1731730
Bull Lake ReservoirWY4711015215231
Bonny LakeCO0n/a411703
Boysen ReservoirWY841127428931007
Calamus ReserviorNE93n/a127127n/a
Carter Lake ReservoirCO67n/a112112n/a
Cedar Bluff ReservoirKS42n/a1723640
Choke Canyon ReservoirTX25n/a695695n/a
Clark Canyon ReservoirMT9687174253126
Canyon Ferry LakeMT8178189219933742
Cheney ReservoirKS76n/a167248n/a
Fort Cobb ReservoirOK97n/a74136n/a
Davis Creek ReservoirNE41n/a3131n/a
Deerfield ReservoirSD95n/a161610
E. A. Patterson LakeND89n/a9910
Enders ReservoirNE20n/a43732
Flatiron ReservoirCO57n/a118
Foss ReservoirOK97n/a169350n/a
Fresno ReservoirMT2859939340
Gibson ReservoirMT1262999989
Glendo ReservoirWY698451778928
Lake GranbyCO89n/a54054030
Green Mountain ReservoirCO48n/a154154203
Gray Reef ReservoirWY91n/a22504
Guernsey ReservoirWY42n/a46462
Hugh Butler Lake (Red Willow Dam)NE48n/a36852
Harlan County LakeNE76n/a3148140
Hebgen LakeMT8575386400828
Horsetooth ReservoirCO72n/a1571570
Harry Strunk Lake (Medicine Creek)NE96n/a36881
Helena Valley ReservoirMT74n/a1010n/a
Jamestown ReservoirND97n/a3222142
Keyhole ReservoirWY69n/a1893290
Kortes ReservoirWY100n/a55543
Keith Sebelius Lake (Norton Dam)KS53n/a351341
Kirwin ReservoirKS62n/a98313n/a
Little Lake Alice ReservoirNE11n/a11n/a
Lake Elwell (Tiber Reservoir)MT77599261329402
Lima ReservoirMT7183841000
Lake Minatare ReservoirNE53n/a5959n/a
Lake TschidaND99n/a67214105
Lovewell ReservoirKS93n/a36860
Marys LakeCO59n/a11445
McGee CreekOK104n/a114199n/a
Merritt ReservoirNE91n/a6767n/a
Lake NasworthyTX86n/a1112n/a
Nelson ReservoirMT81n/a79790
Lake Thunderbird (Norman Dam)OK102n/a106177n/a
Lake Estes (Olympus Dam)CO71n/a33438
Pathfinder ReservoirWY67n/a10701070483
Pilot Butte ReservoirWY81n/a34340
Pinewood ReservoirCO24n/a220
Pipestem LakeND2004n/a914217
Pishkun ReservoirMT75n/a47470
Pactola ReservoirSD93n/a569935
Pueblo ReservoirCO79n/a323350n/a
Ruedi ReservoirCO69n/a102102129
Lake Meredith (Sanford Dam)TX29n/a8961358n/a
Seminoe ReservoirWY6310410171017543
Shadow Mountain ReservoirCO92n/a181820
Lake SherburneMT677466660
Shadehill ReservoirSD85n/a12035023
Swift ReservoirMTn/an/a3036n/a
Tom Steed Reservoir (Mtn Park Dam)OK65n/a97117n/a
Swanson Lake (Trenton Dam)NE58n/a1102441
Twin Buttes ReservoirTX16n/a186640n/a
Turquoise Lake (Sugarloaf Dam)CO60n/a129129n/a
Twin Lakes ReservoirCO71n/a141141n/a
Waconda Lake (Glen Elder Dam)KS76n/a21994215
Webster ReservoirKS43n/a762590
Winters Creek ReservoirNE35n/a33n/a
Willow Creek ReservoirMT70n/a32320
Willow Creek ReservoirCO66n/a11117
Last Updated: 3/18/2024