Glossary
MSL
MSL (mean sea level) is a tidal and charting concept: a long-term average sea surface used for nautical charts and coastal datums. Inland pool guides citing NAVD 88 or NGVD 29 are using geodetic vertical datums—not interchangeable "MSL" labels without a published tie.
Related lake intelligence
Norfork Lake
/lakes/norfork
Norfork Lake catalogs elevation reference MSL—compare only to readings using the same labels.
Related lake intelligence
Lake Pleasant
/lakes/lake-pleasant
Lake Pleasant catalogs elevation reference MSL—compare only to readings using the same labels.
Related lake intelligence
Clarks Hill
/lakes/clarkshill
Clarks Hill catalogs datum NGVD29—compare only to readings using the same labels.

