Seaside Oregon - 300 Mainline To Beerman Creek

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Seaside Oregon - 300 Mainline To Beerman Creek

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Difficulty: Moderate
Length: 17.1 miles / 28 km
Duration: 1-3 hours

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Overview: The ride begins and ends at the Seaside Visitors Bureau parking lot. The ride climbs the back side of the ridge east of Seaside and reaches the crest due east of Avenue U. The ride then follows the ridge south to Beerman Creek and descends Beerman Creek Canyon to highway 101 and back to Seaside. On a clear day this is a great scenic ride with many views of the coastline and the peaks and valleys of the northern coast range.

Tips: At POI 4, enter the forestry gate and stay on the paved road past a chain-link fenced area on the right about 1/2 mile beyond the gate. This is the Warrenton Reservoir.

Just past the reservoir, look for a road on the right with a white and green gate numbered 73. This is the start of the 300 Mainline.

Be prepared with a cellphone, a map (which you can get from the Campbell Group Forestry Center) at the top of Lewis & Clark Rd M-F 10-5pm.

Take a puncture repair kit or spare inner-tube. ALWAYS let someone know where you are going and when you will be back. Food, water and medications as necessary, wear a helmet.

Have lights on your bike in case it gets dark.

And of course....bring your camera

Points of Interest

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Seaside Visitor Bureau & Information Center

Head East along Broadway to the junction of Broadway and Wahanna Rd.

The Seaside Visitor Bureau and Seaside Chamber of Commerce are co-located at the junction of Hwy 101 and Broadway. The Visitor Bureau provides information on Seaside, the surrounding area, Oregon, Washington.

The Visitor Bureau also provides valuable information on tide tables, State driving and local maps, dining and accommodation etc

Visitor Bureau hours are:

Summer - Mon-Sat 8am to 5pm, Sun - 10am to 5pm

Winter - Mon-Sat 10am to 5pm

There is also a 24 hour info center at the entrance to the building where you can find Seaside and local information as well as a speed dial hotel reservation system.

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Broadway - Wahanna Rd Junction

Head North (left) on Wahanna Rd for a mile or so to the Wahanna - Lewis & Clark/Crown Camp Rd junction. The road is a steady climb with a 8% gradient for most of the way to the crest of the hill.

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Wahanna Rd - Lewis & Clark/Crown Camp Rd Junction

Take a right at the junction to head up Lewis & Clark Rd hill. On the right at the junction you will see the North Coast Family Fellowship Church as a reference point

Wahanna - Lewis & Clark Rd Junction Photo

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Entrance To The Forestry

The entrance to the forestry is over the summit of Lewis & Clark/Crown Camp Rd. Please read the sign as to the rules of the forestry.

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The Campbell Group Forestry Headquaters Building

You can purchase forestry maps from the headquarters between the hours of 10-5 Mon-Fri. The cost is $3 and is well worth it. Always take a map with you.....

If you have reached this building on your ride you have missed the junction that you should have turned right at 100-200 yards behind you

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Off The Road And Into The Forest

The tracks on this route are logging roads, are wide enough for two vehicles and mostly flattened hard gravel. Remember this is a working forest so be please be respectful of forestry vehicles if they are in proximity. Despite the width of the roads and trails they are uneven and can be rough in places. Make sure you take a suitably prepared mountain bike on our trails...

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View Of The Coast

Looking West towards Seaside along the trail. Many of our trails offer great views of the coast and coastal mountain range.

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Elk Herd

Elk herds are frequent during various times of the year

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Forestry In Bloom

The forestry has an abundance of wildlife.....

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On The Trail

many of our trails involve a climb either way along it. At this point you are nearing the end of the climb and ready for a great descent of the trail back to Seaside.