Welcome to the RAS Solution Forums HEC-RAS Help RAS Mapper exporting geometry is erratic

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    dianammk97
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    Hi, Im trying to create a flood map using 2d flood modelling analysis but I’m stuck at the step of creating a bathymetry with RAS Mapper. As you can see after I’ve exported the geometry data and created a terrain file, there seems to be additional river lines popping out of nowhere. I’ve redone this step way too many times and am at my wits end. Please help if you know what may be causing this error.

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