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Two Trees Observing Site
LAT: 34.820739, LON: -111.914519, Elevation: 3888
Sedona, AZ USA
Site URL:
Dark Sky Clock URL:
Contact Info: J D Maddy 928 649 0485
Located between the dark sky cities of Sedona and Cottonwood Arizona, the skies have a typical SQM reading of 21.4 to 21.8. Nestled in a low area, there are no visible lights from the location. Some sky glow can be seen from Phoenix, 100 miles to the south if there is moisture or dust in the air. 

From Cottonwood, go north east towards Sedona on Hwy 89A. From the Cornville Road stop light, go six miles and turn left onto FR 525A. Continue about one half mile and veer left onto 761B and go another half mile. The viewing site is on the left just east of the model air field.
From Sedona, travel toward Cottonwood on Hwy 89A and go 7 miles from the stop light at the high school. Turn right onto FR525A and follow the instructions above. 

Camp Hancock Field Station (OMSI Science Camp)
LAT: 44.910, LON: -120.414, Elevation: 2000 ft
Clarno, OR USA
Site URL:
Dark Sky Clock URL:
Map URL:,-120.42552&ie=UTF8&t=h&z=16&iwloc=addr
Contact Info:
Description: OMSI's Camp Hancock Field Station is located near Clarno. See the Camp Hancock web page for more information.

1) Take I-84 east from Portland to Biggs Junction (exit 104), exit and head south on Hwy 97 to Shaniko.

2) Or you may take Hwy 26 east over Mount Hood. Turn left onto Hwy 216, which will take you to Hwy 197 just west of Maupin. Turn right on Hwy 197 and take it south to it's junction with Hwy 97. Turn left onto Hwy 97 and take it to Shaniko.

At Shaniko, turn south onto Hwy 218 (Shaniko-Fossil Hwy) and continue through Antelope and east towards Clarno near the John Day River. Look for the entrance to Camp Hancock about two miles east of the John Day River. 

Larch Mountain
LAT: 45.528 N, LON: 122.084 W, Elevation: 4000 feet
Mt Hood Nat'l Forest, OR USA
Dark Sky Clock URL:
Map URL:,-122.08488464355469&z=16
Contact Info:
Description: Larch Mountain is a great place to go if you are in Portland/Vancouver area and don't want to drive too far. About 45 minutes from town it's paved all the way to the top. Beware that you may encounter others up there though that are not astronomy friendly. Big bright flashlights, etc.
Poor horizons make anything lower than about 15 or 20 degrees difficult or impossible, but anything over that is fair game. The lowest horizon is to the south, so that's the best horizon viewing from this location.
Portland is to the West, so that's where the light bubble is, but Larch is about 26 miles from Portland. 

  1. From Portland take I-84 towards Hood River
  2. Take exit #22 for Corbett
  3. Zero your trip meter at the stop sign.
  4. At the stop sign you turn right and head up the hill towards Corbett.
  5. At 1.3 miles the road Y's, stay left at this "Y" and then take a left onto the Columbia Gorge Scenic Hwy.
  6. Zero your trip meter and proceed for 1.9 miles
  7. Take a right onto Larch Mountain Road. It is paved and marked with a big sign. Follow the road to the top of Larch Mountain (14 miles).
  8. At the top you turn right (just before the parking lot) into a large unpaved open area.

Indian Trail Spring
LAT: 44.3 N, LON: 120.15 W, Elevation: 5000 feet
Ochoco Nat'l Forest, OR USA
Dark Sky Clock URL:
Map URL:,-120.141914&ie=UTF8&t=h&z=16&iwloc=addr
Contact Info:
Description: Indian Trail Spring is in the heart of the Ochoco National Forest in Central Oregon. It's most famous as the home of the Oregon Star Party. With 360 degree horizons and a treeline to treeline Milky Way band, this is one of the best spots around.

Remember: Be cautious of deer or other animals on the roads, particularly around dusk or dawn. Anticipate an hour's drive from Prineville to the site. Roads are paved except for the last four miles, which are gravel, and in good shape.

A) From western Oregon, western Washington & California:
  1. Travel east out of Prineville on State Highway #26.
  2. Zero your trip meter at the Forest Service Headquarters at the east end of town.
  3. Stay on Hwy 26 for approximately 14 miles, then turn right onto the Ochoco Ranger Station Road.
  4. Zero your trip meter again and travel 8.4 miles, until you come to a Y in the road just past the Big Summit Ranger Station.
  5. At this Y, zero trip meter again, stay right on NFS 42 and go 19 miles to NFS 4240.
  6. Turn right onto NFS 4240 and proceed for 2.7 miles
  7. Turn right onto NFS 800.
  8. Go 1.5 miles west on NFS 800 and you will arrive at Indian Trail Spring.

B) From eastern Oregon, eastern Washington, & other states:
Coming from places east of Indian Trail Spring, there are several options.
  1. From the north and east several good paved roads lead eventually to the town of Mitchell along Hwy 26. It is recommended that those coming in from this direction continue west on Hwy 26 to the turnoff for the Ochoco Ranger Station Road and follow the above directions starting at #4.
There are several gravel Forest Service roads that can be taken if one has an Ochoco National Forest map and feels comfortable with navigating back roads. But it is always a good idea to contact the Forest Service to make sure these roads are open. From the southeast, the main roads will take you through Bend and then to Prineville. Hwy 27 is a shortcut available off of Hwy 20 to Prineville, is gravel from Hwy 20 until the Prineville Reservoir where it becomes paved.

Please check the Oregon Department of Transportation web page for up to date road information. The link for Incident Maps will take you to a 9 section grid. The Indian Trail Spring site is in Central Oregon. The site is east of Prineville along Highway 26.

Call if you need additional directions. A good idea is to pick up either a Pittmon's map for Crook County, or a National Forest Service map of the Ochocos for detailed information about the area.

Lahar Viewpoint
LAT: 46.159, LON: -122.094, Elevation: 3000 ft
Cougar, WA USA
Map URL:,-122.095495&ie=UTF8&t=h&z=16&g=46.159197,-122.095495&iwloc=addr
Contact Info:
Panorama Shot
Lahar Viewpoint is on the wide barren deposit where the flood of water, mud and stones swept down Pine Creek on May 18, 1980. A short walk to the east brings you to a small hill and the viewpoint, which show the power of mudflows. This area was swept by a lahar within 15 minutes after the onset of the May 18, 1980, eruption. At this point, the speed of the lahar was estimated at about 44 miles per hour. All trees were destroyed by a big lahar caused by melting of snow and ice during the eruption. The eruptive blast was directed towards the North and forests survived on the volcano's South side apart from those areas affected by lahars. Many geologic features are within walking distance of the parking areas. Fragmental material and lava flows from older eruptions of Mount St. Helens and dramatic effects (deposits, scarred and killed trees, mudlines, and stream channel adjustments) of the 1980 eruption are visible here. Walkers can take the short (several hundred yards) trail over bouldery terrain to the east toward a small hill (not ADA accessible). Near here the lahar split, one branch flowing down Pine Creek and the other down the Muddy River gorge. A large, lone tree south of the road is scarred on its upstream side, showing the maximum height of the lahar in this location.

From the west side (Portland, Vancouver, Kelso, etc)
1) Head northbound on I-5 (southbound I-5 if you are north of Woodland)
2) Take exit 21 for State Hwy 503 E toward Woodland/Cougar (0.3 mi)
3) Turn right at Lewis River Rd/WA-503 (31.4 mi)
4) Continue on NFD 90 Rd (1.0 mi)
5) Turn right at NFD 83 Rd (10.5 mi)

Butte Hill
LAT: 45.969, LON: -122.706, Elevation: 1500 ft
Woodland, WA USA
Map URL:,-122.706626&ie=UTF8&t=h&z=16&iwloc=addr
Contact Info:

Take I-5 to Exit 21 Woodland
Head East on Lewis River Rd for 3.5 miles
Turn Left at Butte Hill Rd
Go 1.9 miles on Butte Hull Rd until it becomes a gravel road
Go .7 miles up the gravel road until the parking lot opening at the gate

Savery Stock Drive
LAT: 41.10693, LON: -107.27783, Elevation: 7886
Savery, WY USA
Map URL:
Contact Info: Leif Rudd
One of the nearest truly dark sites to Cheyenne, Denver and Laramie. Quite remote, with no electricity, food or water. Nearest town is Savery, WY, population 25, approximately 5 miles WSW from the site. Savery creates a tiny dome approximately as bright as the setting Milky Way. No other domes visible in any direction. Obstructions are minimal, with a low hill and aspen trees to the north, and distant mountains to the south. Site is approximately 68 miles west of the Jelm Mountain observatory. Air is very dry, possibly hazy.
Savery Stock Drive is auto-passable when dry, 4WD when muddy. Deep ruts may exist in the roadway, making auto access tricky. Land is on National Forest, with livestock grazing in the area. Any track off the main road is fair game to set up camp for viewing.
Site specified in the Lat/Lon is in low sagebrush with an auto-passable grassy track approaching it. Other useful sites nearby exist; this represents the best we had time to locate in the waning hours of daylight on 9/17/2012. The MW was clearly visible 40 minutes after sunset.

  • From Laramie, take Snowy Range Road (Wyoming 130; 41.314821, -105.593376) west to Wyoming 230 ( 41.357420, -106.742306 ). 54.6 miles.
  •  Drive south on Wyoming 230 to Riverside / Encampment. 10.1 miles. Gas and provisions are available here, for instance at "The Trading Post" ( 41.216762,-106.782705 ), but this is the last of the gas for many miles.
  • Proceed southwest on Wyoming 70 to Stock Dr. ( 41.101475, -107.245016 ). 29.5 miles.
  • Take Stock Dr. west past the fenced area. Park anywhere off the main road where you feel the obstructions are minimized to your satisfaction. Location indicated is 1.9 miles from Wyoming 70.
Note that, though paved, Wyoming 70 is closed in winter. Check for details before your travel date.

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