Location and surroundings
Marys Peak sits in the Central Oregon Coast Range, within the Oregon Coast Range and the wider Pacific Coast Ranges of the North American Cordillera. It is in Benton County, Oregon, in the United States. At 1,249 m, it is the highest peak in the Central Oregon Coast Range and the highest point of that range.
The mountain rises above a landscape of forest, meadow, and steep slopes west of the Willamette Valley. Its upper slopes include open grassland near the summit, while lower elevations are more heavily wooded. The peak is also the highest point in Benton County and a prominent local landmark southwest of Philomath.
Neighbouring peaks
Marys Peak is the tallest summit in its immediate area, but several other peaks lie nearby:
- Old Blue Mountain — 1,003 m, 5.1 km south
- Pioneer Butte — 450 m, 7.1 km northeast
- Creel Hill — 480 m, 8.1 km southwest
- Doe Mountain — 491 m, 8.5 km south
- Maddsens Knob — 664 m, 8.6 km south
- Dudlee Hill — 313 m, 10.2 km north
- Flat Mountain — 812 m, 10.9 km southeast
- Lone Spring Mountain — 682 m, 11.4 km west
Among these, Old Blue Mountain is the closest high summit and the nearest one above 1,000 m, but it still stands well below Marys Peak. The surrounding hills are lower and more scattered, which makes Marys Peak the clear high point of the area.
The view from the summit
From the summit, the broadest views open toward the valleys and ranges around western Oregon. The highest nearby peaks within 25 km are Grass Mountain to the southwest, Prairie Mountain to the south, Alsea Mountain to the southeast, Table Mountain to the west, Green Peak to the southeast, and McCulloch Peak to the northeast.
Distances and directions from Marys Peak are: Grass Mountain 13.1 km southwest, Prairie Mountain 23.7 km south, Alsea Mountain 3.6 km southeast, Table Mountain 23.4 km west, Green Peak 16.8 km southeast, and McCulloch Peak 21.1 km northeast. On clear days, the summit also looks east, northeast, and southeast toward the Willamette Valley and the Cascade Range, with the Pacific Ocean visible to the west.
The range
Marys Peak belongs to the Central Oregon Coast Range, which is the highest part of the larger Oregon Coast Range. The subrange has 88 named peaks, and Marys Peak ranks first by elevation among them. It is also the high point of the Central Oregon Coast Range itself.
In the wider mountain system, the peak sits within the Oregon Coast Range, then the Pacific Coast Ranges, and finally the North American Cordillera. That setting explains its mix of coastal forest, wet weather, and open summit meadow, which is unusual for a mountain so close to the coast.
Access and starting points
Corvallis is the usual starting town for visits to Marys Peak, and the mountain lies just southwest of Philomath. OpenStreetMap shows three car parks within 2 km of the summit, with the nearest about 700 m north. A viewpoint is mapped about 40 m northeast of the top, and two communication masts are mapped within 10 km, the nearest about 20 m southwest.
For walkers, the rough approach from the car park 0.7 km north of the summit, at about 1,150 m, is about 0.9 km on foot with 100 m of ascent, or roughly 15–25 minutes. The summit road remains open in winter, but it is not maintained, so motor access then may require a lifted 4x4 or four-wheel chains.
Climate and weather
These are estimates from NASA POWER climate data adjusted to summit height. The warmest month at the summit is July, at about 9 °C, and the coldest is February, at about 2 °C. Mean temperatures stay above freezing in every month, though winter conditions can still be cold, wet, and windy.
The surrounding area receives about 1,500 mm of precipitation a year. December is the wettest month, at about 265 mm, and July the driest, at about 10 mm. In this part of Oregon, the main weather hazards are rain, fog, wind, and slippery ground in the wet season; winter access can also be affected by snow and ice on the road and upper slopes.
Best time to visit
Because the summit stays above freezing on average all year, Marys Peak can be visited in most seasons, but the most comfortable hiking conditions are usually in the drier months. The climate data point to a much wetter cool season and a very dry midsummer, so late spring through early autumn is generally the easiest period for a walk to the top.
Even then, the mountain can change quickly. Cloud, wind, and rain are common in the coastal ranges, and the summit meadow is exposed. If you plan a winter visit, expect a wetter and colder outing, and check road conditions before setting out.
Nature and wildlife
The upper slopes of Marys Peak carry a summit grassland with many wildflowers, while noble fir dominates higher forest and Douglas fir with western hemlock is more common lower down. The summit meadow includes gabbro outcrops known as rock gardens, where thin, dry soils support species such as Cascade desertparsley, harsh paintbrush, Olympic onion, and spreading phlox.
The mountain includes the Marys Peak Scenic Botanical Special Interest Area and lies within Siuslaw National Forest. These protected areas help preserve the meadow, riparian zones, and noble fir stands. The open summit and mixed forest also provide habitat for forest birds, small mammals, and cold-adapted insects typical of the Oregon Coast Range.
Guides and organised ascents
Marys Peak is usually climbed as a straightforward day hike rather than a technical mountaineering objective, so a certified guide is not normally necessary for fit visitors on the standard routes. In the United States, the national mountain guide association is the American Mountain Guides Association, which is an IFMGA/UIAGM member, and the national alpine club is the American Alpine Club.
For guided mountain travel in the country, established companies include RMI Expeditions in Ashford, Washington, and Exum Mountain Guides in Moose, Wyoming. A guided outing usually depends on the route, group size, season, and whether extra equipment or winter travel is involved. For Marys Peak itself, most visitors simply plan a self-guided hike from the local trail and road access points.
Safety and preparation
Marys Peak is not a high alpine climb, but its exposed summit, wet climate, and winter road conditions still call for basic preparation. Good footwear, rain protection, and layers are sensible year-round, and in colder months the road and upper slopes may be icy or snowy. The open top can also be windy, so it is worth carrying extra clothing even on a short outing.
For emergencies in the United States, the mountain rescue number is 911. Dispatchers alert the local search and rescue team, usually run by the county sheriff or a national park service. Download maps before you go, and be ready for patchy reception away from the open summit and road corridor.
History and name
The Kalapuya name for the mountain is chatímanwi, also written in forms such as tcha Timanwi and chintimini. In Kalapuya oral history, the mountain is linked to ancestors climbing it to escape a great flood, and it remains an important spiritual place. The name Marys Peak was later applied by settlers of European ancestry, possibly after Mary Lloyd, though other explanations have been suggested.
The mountain has also been known as Chintimini and Mouse Mountain. In the 20th century, the summit road and open top made it a local gathering place, including annual Shriners picnics from 1946 to 1984. More recently, Native names were approved for creeks flowing down the mountain, reflecting renewed attention to the area’s Indigenous history.
Interesting facts
Marys Peak is the highest of 88 named peaks in the Central Oregon Coast Range and the high point of that range. It is also the highest point in Benton County and ranks twelfth in Oregon by prominence. The nearest higher-looking country around it is not another summit in the immediate hills, but the broader Cascade Range visible from the top on clear days.
The summit area is unusual for its mix of open meadow, rock gardens, and forest, and it has been studied for rare species such as the ice crawler Grylloblatta chintimini. The mountain also has a long cultural history, from Kalapuya use and spiritual significance to later logging, water-supply protection, and recreation.
FAQ
How high is Marys Peak? It rises to 1,249 m.
Where is Marys Peak? It is in Benton County, Oregon, in the United States, southwest of Philomath.
What range is Marys Peak part of? It belongs to the Central Oregon Coast Range, within the Oregon Coast Range and the Pacific Coast Ranges.
What are the nearest peaks? The closest listed ones are Old Blue Mountain 5.1 km south, Pioneer Butte 7.1 km northeast, and Creel Hill 8.1 km southwest.
Is there water on the way to Marys Peak? Plan to carry your own. The summit area is exposed, and for a day hike it is sensible to bring about 1.5–3 litres depending on heat and route length.
Are there huts on Marys Peak? OpenStreetMap shows no hut or shelter within 2 km of the top, so hikers usually plan the ascent as a day trip or carry their own tent.
How long does it take to walk up Marys Peak? From the car park 0.7 km north of the top, at about 1,150 m, the rough walking time is 15–25 minutes; the real path may be longer.
Is mobile phone coverage good on Marys Peak? Two communication masts are mapped within 10 km, the nearest about 20 m southwest, so a signal is likely on the open summit but can fail in valleys and behind ridges. 112 reaches emergency services over any available network, and maps should be downloaded before setting out.