Topstone Park in Redding was closed for several hours yesterday because of some visitors found there in the morning.  Redding Police limited access to the park because a mother bear and two cubs were spotted sleeping in a tree.  This was shortly before 9am.  Parks and Rec decided to open Topstone to the public around 12:30pm after checking and finding no further sign of the bears.  The state Department of Energy and Environmental Protection had also been advised.  Redding Police warned people to be cautious yesterday in the area around the park.