Where is MrsWiggings house on club pony pals

Ms. Wiggins' mansion is at the end of the Wiggins Estate trails. to ride on them, you need to have bought a pony from Olson's and have your board bill up to date.
The trail starts at the Three Birches. Choose the trail behind the gate, and ride to the end of the trail (you can gallop on these trails). You will be in the Wiggins Estate meadow. Click on the gate and choose either the trail to the left (longer, with jumps), or the trail in the middle (shorter). They both lead to Wiggins Mansion.