Where to donate camping stuff

Hi,

Me and my husband are on a roadtrip and have bought some camping gear we can not take back to Europe with us. In a few weeks we will be leaving from Salt lake city. We would like to donate this stuff. Where would be the best place for this? We have a sleeping pad, sleeping bag, towels, pillows, fleece blankets, foldable chairs some plates etc.

Hope someone can help us out.