The pass is snow bound until July and trees are usually cut out by mid-July.
Narrow Canyon is a trail that can be climbed to create a larger loop, or used as an out and back. From the bottom of the trail, the first part is fairly mellow and climbs a valley that heads north. The grade is fairly steady with a couple short steep sections to grunt up.
The final section is usually steep and loose with some hiking the bike. The trail can also have many downed trees, depending on how the winter went. Be prepared for more if you hit downed trees!