Wendy Harris pointing to a map on a getigraph showing the location of Ninth Avenue.[1]

Ninth Avenue is a road outside of the Gotham City Limits, running northeast[2] of the city.[3]

The getigraph, which was monitored by Marvin White, Wendy Harris, Director Wimple and Wonder Dog, showed a squiggly line that indicated the location of the blue beam.[4]


  1. As seen in The Ultra Beam.
  2. It wasn't entirely clear if the road actually traveled northeast, or if it ran in another direction, but was located northeast of the city.
  3. As seen in the Season 1 episode The Ultra Beam. (1973)
  4. As seen in The Ultra Beam.
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