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Grundet utgörs av en sten- och sandbank nästan 4 M långt och 1 M brett och är beläget i öppna havet utanför inloppet till Luleå cirka 10 M syd om Rödkallen. Det grundaste området är cirka metern djupt. I tidiga seglingsbeskrivningar rekommenderades att "lodet bör flitigt därstädes begagnas" då man närmade sig. Ofta iakttogs en kraftig strömsättning vid platsen, vilket möjligtvis kan förklara namnet på grundet.
Fyrskeppsstationen Norströmsgrund låg cirka 3 M SV om grundet, på knappt 40 m djup och sandbotten på position Lat. N 65° 7’ 30". Long. O 22° 19’ 54". Några år efter utläggandet flyttades stationen cirka 1 M norrut.
1894-1969 var Norströmsgrund fyrskeppsstation. "Under perioden 1 juni - 10 juli är fyren släckt medan skeppet kvarligger på sin position. Efter kalla vintrar kan fartyget på grund av issituationen förväntas att utläggas först i mitten av juni."
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