"Rocky Mountain National Park [Colorado]" is a detailed informational guide produced by the United States Department of the Interior, specifically under the auspices of Secretary Harold L. Ickes and National Park Service Director Arno B. Cammerer, written in the late 1930s. This publication serves as both a travel guide and educational resource about the park, exploring its natural beauty, history, geology, and recreational opportunities available for visitors. The book extensively covers various aspects of Rocky Mountain National Park, detailing its majestic mountain features, such as Longs Peak, which stands at 14,255 feet, and discusses the park's glacial history and stunning flora and fauna. It provides a comprehensive overview of accessible trails for hiking, camping, fishing spots, and automobile routes such as the scenic Trail Ridge Road, which offers breathtaking views. Additionally, it highlights the park's wildlife, conservation regulations, and tourist information to enhance visitors' experiences while protecting the park's natural environment. Overall, this guide presents a treasure trove of information for nature enthusiasts and potential visitors looking to explore the wonders of Rocky Mountain National Park. (This is an automatically generated summary.)