Black Rock Reservoir via McKinley Grove Road

This route is considered a difficult touring bicycle ride, requiring very good fitness. You'll encounter significant elevation gains, climbing over 1,770 meters (5,800 feet) over approximately 84.9 km (52.8 miles). The terrain includes a mix of paved and unpaved sections, with some parts being narrow, steep, and potentially rough, especially closer to the reservoir.

The route features diverse road conditions. While much of McKinley Grove Road (11S40) is paved, sections closer to Black Rock Reservoir and beyond on Blackrock Road (11S12) can be unpaved, winding, and narrow. Expect loose gravel and potentially rough surfaces, making a touring bike capable of handling varied terrain highly recommended.

The best time to cycle this route is typically from late spring through fall, avoiding the winter months. Roads in the Sierra National Forest, including those leading to Black Rock Reservoir, can be seasonally closed due to snow and adverse weather conditions. Always check the latest road status with the Sierra National Forest before planning your trip.

Generally, there are no entrance fees for day use or cycling on most roads and trails within the Sierra National Forest. However, specific permits might be required for certain activities like campfires or wilderness entry if you plan to venture off the main route into designated wilderness areas. It's always a good idea to check the official USDA Forest Service website for the most current regulations: usda.gov.

Specific trailhead parking information for this exact route isn't detailed, but access points along McKinley Grove Road (11S40) would be your best bet. Given the route's length and remoteness, consider starting from a point that allows for a full day's ride. Always ensure you park in designated areas and do not block any forest service roads or gates.

Dogs are generally allowed on trails and roads within the Sierra National Forest, but they must be kept on a leash. Always practice Leave No Trace principles, including packing out all pet waste. Be aware that this is a long and challenging route, and the varied terrain and potential for wildlife might not be suitable for all dogs.

The primary highlight is cycling through the majestic McKinley Grove, home to Giant Sequoias. This area offers a cool, shady, and quiet atmosphere. Near Black Rock Reservoir, you'll find a secluded canyon with granite cliffs, pine, and cedar trees, offering impressive canyon views. The route also climbs high above the Kings River, providing breathtaking views of the Sierra Nevada.

Yes, the route utilizes and intersects with several other forest roads and trails. Notable sections include Blackrock Road (11S12), which makes up a significant portion, as well as Forest Route 11S19, Forest Route 10S13, and Ross Crossing Road. You may also encounter smaller segments like Gigantea Campground Loop and Crabtree Road.

Given the route's length, difficulty, and remoteness, self-sufficiency is key. You should bring plenty of water (as sources are limited), high-energy snacks, a repair kit for your bike, appropriate layers of clothing for changing weather, sun protection, and a first-aid kit. A reliable navigation device with offline maps is also highly recommended.

Be prepared for the challenging nature of Blackrock Road (11S12) leading to the reservoir. It's described as a winding, one-lane road with narrow single-lane wooden bridges and significant drops, which can be quite demanding. Starting early in the day is advisable to allow ample time to complete the route before dark, especially given the potential 7+ hour duration.

Due to the remote nature of this route, reliable water sources are extremely limited. It is crucial to carry all the water you will need for the entire duration of your ride. Do not rely on finding potable water along the way.