You have unlocked the capability of creating a teleport beacon to Steel Canyon.
How to Get
One obtains the Steel Canyon Beacon supergroup badge by visiting all the Steel Canyon exploration badge locations while in supergroup mode.
Note that visiting these locations while not in supergroup mode will not advance towards earning this beacon badge, even though it will earn the personal exploration badge for that marker.
The Steel Canyon Beacon Badge location is (-4609.5, 3.1, -2618), under the large female statue east of the Green Line station.