USGS gaging stations (clickable) [data]
Lidar land-surface elevation (NAVD88)
OWRB lake-bottom elevation (NGVD29) [data]
Streams [data]
FEMA 100-year flood zone
Grand Lake: areas below Pensacola-dam stage of 741.6 feet PD (743 feet NAVD88)
  1. 741.6  
  2. 753.6  
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Current stage at Pensacola Dam on Grand Lake: 742.0 feet PD (743.4 NAVD88) at 2020-10-20 23:00 CDT

The U.S. Army Corps of Engineers maintains current and historic data on lake stage and storage at Grand Lake.

The target managed lake elevation is dependent on the time of year. [more]