A landmark helps. An address helps more.
The official tourism listing places the White Tank Mountain Regional Park entrance on White Tank Mountain Road in Waddell. If your car is near the park, identify the parking area rather than giving the landmark alone. Do not assume access to every trail or facility.
Explain the access you need.
For a home, list the outside doors you use and whether the keys are missing or the hardware is failing. For a garage, describe its current position and any uneven movement. These details determine the conversation more than the nearest main road.
And the garage?
Locks and opener controls are different systems. Describe which one needs attention.