Chico >> Fifty years from now there should be more shade at the parking lot at Horseshoe Lake.Volunteers had their hands covered with mud Saturday while planting blue oak acorns.Normally this might be a job for squirrels. However, new seedlings have a tough time at Horseshoe Lake with people and dogs are running and walking over the area year-round.Saturday, a group organized by the Butte Environmental Council did all that they could to give the new acorns a great chance at survival.