Update: REMAINS RECOVERED 2/20
A check of the birth chart for the person of interest, McDougal, reveals this area would tie his own Natal Jupiter Square to this area, as well as his progressed Venus in square to Jupiter at the time of this disappearance.
Born 12/3/81 puts McDougals' Sun at 11 degrees of Sagittarius, which measures 251 degrees of total celestial longitude, which happen to be the same numbers that appear as the date of Audrii's disappearance, 2/15 who was 11 years old at disappearance.
Still waiting on a date of birth for Audrii to complete the analysis, but this area could hold promise for her whereabouts. If anyone comes across her date of birth please by all means post it in the comments.
Updates in Progress as of 2/19/2024