MBTA riders in certain stations will be able to look in their Android devices to find out where they are, the T announced today, saying it was the first US transit agency to offer such a feature.

“Google Maps for Android users will now see indoor maps when they zoom into select MBTA stations,” the state transportation department said in a statement. “With indoor maps, users will be able to see station features such as stairs, escalators, elevators, entrances and exits to help guide them through the system.”

Riders can access indoor floor plans for 24 “key stations,” including Park Street, South Station, and Downtown Crossing, according to the statement. A blue dot on the maps will show people where they are inside the stations, the department said.

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The MBTA has collaborated with Google since 2009 to help riders navigate the transit system. Last year, the organizations joined to provide real-time travel data on Google Maps.