Kofa Queen Canyon Trail Professional Review and Guide
"This spur trail is one of the few within the Kofa National Wildlife Refuge that travels up one of the high-walled red canyons that penetrate into the rugged Kofa Range. The trail leads off from Central #1: Palm Canyon Road, where it enters the Kofa National Wildlife Refuge. For the first 4 miles, the trail is smooth and easygoing as it ascends the bajada, the gently sloping fan on the west side of the range. For campers, the large campsite over the rise to the right at the 4.3-mile mark is easily the best—large, flat, and gravelly, with a measure of privacy from the main trail and great sunset views to the west.
Special Attractions: King Valley; Access to a network of trails within the Kofa National Wildlife Refuge; Historic Kofa Mining District. High-clearance 4WDs are preferred, but any high-clearance vehicle is acceptable. Expect a rough road surface; mud and sand are possible but will be easily passable. You may encounter rocks up to 6 inches in diameter, a loose road surface, and shelf roads, though these will be wide enough for passing or will have adequate pull-offs."