Man made addition of fixtures or structures.
Annexation
ADDITIONS: whether natural or man made.
Accession
Gradual deposit of soul through natural causes. (ie: river deposits)
Reliction
Gradual lots of soul to natural causes (tides, wind, etc.) opposite of accession.
Erosion
Natural loss is sudden by water. Title to land is not automatically lost- owner can claim original boundary and try to reclaim lost land.
Avulsion
3 ways to gain land
Accession
Accretion
Annexation
3 ways of land loss.
Avulsion
Erosion