Big Hill is an easy system where most beginners and intermediates can practice their skills before tackling some of the tougher rides in the area. There are 2 very easy trails, the A-1 loop that only heads out .5 miles round trip, and the A loop that is 2.1 miles round trip. Both of these have minimal hills and almost no technical sections. On the outer edges of A loop, three other more difficult trails begin. C Loop is just over 5 miles long and has some technical sections such as loose and broken rocks, as well as a few tough climbs. It does have an excellent downhill section on its far eastern end. D loop is also over 5 miles long, but is much easier as most of it has been turned into two track road due to logging in the area. B loop is a much more technical 1 mile trail, that has roots, rocks, switchbacks, and a good steep climb if you tackle it from the east side first. A good 1/2 day can be spent riding all of these trails as they interconnect.
Off I-90, take exit 12 at the City of Spearfish. Follow this street (Jackson Street) through 3 stop lights until reaching Junek's car dealership. Go one more block and turn left onto University. Follow University to the end, turn right and follow Tinton Road as it turns dirt. At the end of the road, turn left and follow road #134 6 miles. The parking will be on the right and the trail begins on the left side of the road.
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