|Name||Margaret Ann Walden|
|Found||September 19, 1982|
|Location||Espanola, New Mexico|
|Missing from||San Diego, California|
|Cause of death||Strangulation|
Margaret Ann "Margo" Walden was a woman found buried on an island in the San Juan River in 1982, 75 yards from the Colorado border.
The body of a man, later identified as Stewart Simmons, was found in Colorado a month later. Simmons was identified in February of 2014; Walden was identified in August. Two people have been arrested in connection with their murders.