Family Friendly: This trail is popular with local families visiting the area. The lake offers fishing, views, and easily accessed spots to hang out and enjoy the mountains without travelling far from the trailhead.
From the intersection with State Road 38 in Red River, drive 6 miles up 578 to where the pavement ends at a junction of the Middle Fork Road (FR 58) on the right and 58A to the left across a bridge. Either park here and ride, or drive 1.1 miles up the Middle Fork road to a parking area.
From the parking area ride up the dirt road for 1/4 mile until you come to fork where there's a gated property on the right. Stay on the trail to the left and cross the Red River on the bridge or ride across the creek during low flows. For the next mile ride up this trail (old jeep road) as it climbs up the mountainside on the east side of the creek. You'll come to a trail junction just before a shallow river crossing, Lost Lake Trail #91
begins here on the left and the Middle Fork Trail continues to the right across the river. Continue up this trail as it switches back several times leading to Middle Fork Lake.