There are three more. One is located on 23rd avenue and roughly 18th st. There's another located in the Country Club West neighborhood on 59th ave and 15th street. The 3rd is in Evans on 28th avenue and 39th st (very nice) . Hope that helps!
There is one at Peakview Park on 13th and one at Sunrise Park on 4th, but if you're looking for the nice cement ones, you won't find them here. These are the kinds that have the big metal ramps that can be moved and are less aesthetically pleasing.