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Mount Sinai Cemetery is located at the corner of 78th and Crown Point in Omaha. It's a nicely kept Jewish cemetery, very sunny and open. It looks empty from the street, but most of the graves are flush with the ground and you only see how crowded it is when you walk around. There is an older section with upright markers, as in the older Jewish cemeteries, to the east of the newer sections.
Below is a photo of the front gate of Mount Sinai, taken from inside the cemetery.