Fighter
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 5.0
Confusion; Situational Awareness
ATC Issue All Types; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued New Clearance
Human Factors; Airspace Structure
An IFR light of two requested vectors over the bridge for a tour. They were over the ocean level at 3;000 feet. I had my MVA map displayed as well as the new ZZZ Class Bravo airspace map along with my usual airspace map. The aircraft wanted to be as low as possible and I looked at what appeared to be Aircraft X in a 2;300 foot MVA; so I descended him to 2;300 feet. The Low Altitude alarm went off; but after I saw it and figured out my mistake; Aircraft X was northbound exiting the 2;600 foot MVA and flying into the 2;300 foot MVA. I was busy working airspace that I do not often work and I simply misread my MVA map. A possible solution would be to make the MVA map lines a different color than all the other lines.
A TRACON Controller reported they vectored an aircraft into an area below the Minimum Vectoring Altitude.