I would like to know if there another way to filter dictionnary

public class location 
{
public Dictionary<int, Dictionary<int, Dictionary<int, location>>> Example{ get; set; }
}


public class location
{
   public int Id { get; set; }

   public string Name{ get; set; }
}

i would like to filter  dictionary where Id  = 3 

I need to filter the Example dictionary where the Id property of LocationBO equals 3. Currently, I achieve this with the following code:

var filteredLocations = locations.Select(location =>
    {
        var filteredDict = location
            .Example
            .ToDictionary(
                outerKey => outerKey.Key,
                outerValue => outerValue.Value
                    .ToDictionary(
                        middleKey => middleKey.Key,
                        middleValue => middleValue.Value
                            .Where(innerEntry => innerEntry.Value.id== 3)
                            .ToDictionary(innerKey => innerKey.Key, innerValue => innerValue.Value)
                    )
            );
        location.Example= filteredDict;

        return new Location(location);

    })
    .ToList();

Is there a more efficient or readable way to filter this nested dictionary structure based on the Id property?