They did go back..
Dec4
http://durangoherald.com/article/201...searched-again
Area reservoirs searched again
The searches failed to produce any new leads, said Dan Bender, spokesman for the La Plata County Sheriffs Office.
Were just trying to be as thorough as we can be, he said.
http://www.therepublic.com/view/stor...O--Missing-Boy
Investigators search reservoir again for signs of missing boy in southwestern Colorado
http://www.ourcoloradonews.com/trila...a4bcf887a.html
No new leads in search for missing 13-year-old: Task force continues search, parents take polygraph test
Investigators continue their search for Dylan Redwine, the 13-year-old Lewis-Palmer Middle School Student, who disappeared from his father's home on Nov. 19 near Durango while on a visit for Thanksgiving.
Boats equipped with sonar equipment searched Vallecito Lake again while the task force searched the shoreline.
We have no new tips that have sent us back to the lake but we're checking in case changes in water and lake conditions could have resulted in any changes from last week, Sgt. Dan Bender, spokesperson for the Dylan Redwine Task Force, said in a statement. Those searches have not found anything at this time but are continuing throughout the day.