Steptoe Butte State Park, located in the state of Washington, offers visitors breathtaking panoramic views, unique geological features, and opportunities for outdoor activities. Here is a summary based on information from multiple independent sources.

Reasons to Visit:
1. Scenic Views: The park's main attraction is the towering Steptoe Butte, a quartzite island rising approximately 1,000 feet above the surrounding Palouse hills. From its summit, visitors can enjoy spectacular vistas of the rolling farmlands and unique coulees that make up the Palouse region.
2. Photography Opportunities: Steptoe Butte offers photographers an idyllic setting with its picturesque landscapes, offering a chance to capture stunning shots of the undulating hills, vibrant sunsets, and the play of light and shadow on the fields.
3. Hiking and Picnicking: The park provides well-maintained trails that wind around the butte, allowing visitors to enjoy leisurely hikes amidst the region's diverse flora and fauna. There are also picnic areas available, making it an excellent spot for a break or a meal with a view.

Points of Interest:
1. Steptoe Butte Summit Road: A 3.5-mile paved road leads to the top of the butte, accessible by car. This road features several viewpoints along the way, allowing visitors to experience the breathtaking scenery from different angles.
2. Wildlife Viewing: Steptoe Butte State Park is home to a variety of wildlife species, including mule deer, coyotes, birds of prey, and even the occasional moose. Wildlife enthusiasts can spot and observe these animals in their natural habitat.
3. Wildflower Displays: During the spring and early summer months, the park's hills burst into vibrant colors as wildflowers blanket the landscape. This makes it an ideal time for nature enthusiasts and photographers to visit.

Interesting Facts:
1. Steptoe Butte is an erosional remnant, formed millions of years ago as a result of volcanic activity and glacial forces. It stands as a prominent landmark in the otherwise gently rolling Palouse region.
2. The park is named after Colonel Edward J. Steptoe, a U.S. Army officer who explored the area in 1858.
3. Steptoe Butte has historical significance as it served as a lookout point during the Nez Perce War in 1877, witnessing the movement of both the Nez Perce tribe and the U.S. Army.

Best Time to Visit:
The best time to visit Steptoe Butte State Park is typically during the spring and early summer (April to June). This period offers the opportunity to witness the wildflower displays, enjoy pleasant weather, and capture the stunning landscapes when they are at their most vibrant. However, the park is open year-round, and each season provides its own unique charm and outdoor activities.

It is always recommended to check the official state park website or consult local authorities for the most up-to-date information, including any seasonal closures or restrictions.