After researching the AHRA - Parkdale Rec Site boat ramp in Colorado, it is found that it is a concrete boat ramp that is about 15 feet wide. This boat ramp services the Arkansas River, a popular destination for recreational activities like fishing, kayaking, and rafting. The Colorado Parks and Wildlife website states that all types of non-motorized watercraft are allowed on the Arkansas River, including kayaks, canoes, and rafts.

Additionally, the website mentions that there are specific regulations and safety guidelines that must be followed when using the Arkansas River, such as wearing proper flotation devices and following the designated boat routes. The website also provides information on current water conditions and any closures or restrictions that may be in place.

Overall, the AHRA - Parkdale Rec Site boat ramp appears to be a safe and reliable entry point for recreational activities on the Arkansas River in Colorado.