Rocky Mountain Maple
Scientific name: Acer glabrum
Overview
Rocky Mountain Maple is a small to medium-sized North American hardwood native to the mountainous regions of western North America. Its range extends from Alaska and western Canada south through the Rocky Mountains into the southwestern United States and northern Mexico. A member of the Sapindaceae family, it is one of the few maple species well adapted to high elevations, rocky slopes, stream banks, and cool mountain forests.
Unlike the large commercial maples of eastern North America, Rocky Mountain Maple is seldom harvested for lumber because of its relatively small size. Nevertheless, its wood shares many of the desirable characteristics of other maples, including fine texture, close grain, and good strength. It is occasionally used for specialty woodworking, woodturning, tool handles, and small craft projects, while the tree itself is valued for its ecological importance and brilliant autumn foliage.
Quick Facts
- Common Name: Rocky Mountain Maple
- Scientific Name: Acer glabrum
- Region: North American Hardwoods
- Tree Size: 20–40 ft (6–12 m) tall, 8–18 in (20–45 cm) trunk diameter
- Average Dried Weight: Approximately 38 lbs/ft³ (610 kg/m³)
- Janka Hardness: Approximately 950 lbf
- Grain: Straight
- Texture: Fine and uniform
Identification Characteristics
Rocky Mountain Maple produces a creamy white to pale reddish-brown heartwood that is only slightly differentiated from the nearly white sapwood. The grain is typically straight with a fine, uniform texture and a smooth natural appearance. Growth rings are generally subtle, producing a clean, understated figure similar to other maple species.
Key identification traits include:
- Creamy white to light reddish-brown heartwood
- Pale white sapwood
- Straight grain
- Fine, uniform texture
- Low natural luster
- Smooth, even appearance
- Small-diameter logs
Working Properties
Rocky Mountain Maple machines easily with both hand and power tools. Its fine texture allows for smooth cutting and excellent surface quality. The wood glues, turns, sands, and finishes exceptionally well, making it well suited for detailed woodworking and decorative projects.
- Machines easily
- Excellent turning characteristics
- Carves cleanly
- Sands to a smooth finish
- Glues well
- Accepts stains and clear finishes readily
- Good dimensional stability
Safety Note
Wood dust may cause mild skin, eye, or respiratory irritation in sensitive individuals. Standard dust collection and respiratory protection are recommended during machining and sanding.
Common Uses
Its fine texture, attractive appearance, and good workability make Rocky Mountain Maple suitable for numerous woodworking applications, including:
- Turned objects
- Wood carvings
- Furniture
- Cabinetry
- Decorative boxes
- Walking sticks
- Craft projects
- Tool handles
- Musical instrument components
- Specialty woodworking
Sustainability & Notes
Rocky Mountain Maple is widespread throughout western North America, where it serves as an important understory tree in mountain forests and riparian habitats. Because the tree typically remains small, it is not harvested extensively for commercial lumber. Instead, it plays an important ecological role by providing food and habitat for wildlife while helping stabilize mountain slopes and stream banks.
Although uncommon in commercial woodworking, the species is appreciated by local woodworkers for its attractive grain and excellent machining characteristics.
Comparative Notes & Related Species
Black Maple – A closely related eastern maple valued for furniture, flooring, and cabinetry.
Striped Maple – Another smaller native maple species that is primarily valued as an ornamental and collector species rather than a commercial timber tree.
Mountain Maple – A northern maple adapted to cool climates that shares a similar small stature and ecological role.
Related Guides
Maple Species Guide – Compare the many maple species found throughout North America and around the world, including their identification, distribution, and woodworking characteristics.
Hardwood vs. Softwood: Key Differences Explained – Learn why maples are classified as hardwoods despite the relatively soft wood of some species.
How to Identify Wood by End Grain Patterns – Discover how end grain anatomy can help distinguish maple from other fine-textured hardwoods.
Compare Wood Properties
See how this species ranks in density and hardness using our Wood Density & Janka Hardness Chart. You can also explore Hardest Woods, Softest Woods, and Most Dense Woods for quick comparisons.
Collector Notes
Rocky Mountain Maple is an excellent collector species because it represents one of the lesser-known native maples of western North America. Its relatively small size has limited its commercial importance, making authenticated wood samples much less common than those of Sugar Maple or Red Maple. A documented specimen provides an excellent representation of the remarkable diversity within the Acer genus and complements collections featuring Black Maple, Mountain Maple, Striped Maple, Vine Maple, and other North American maple species.
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Wood Sample Collection
This species is part of an ongoing effort to document and preserve wood samples from around the world.
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Resources
Authoritative botanical and forestry references used in compiling information about this species include:
• USDA Forest Service – Wood Handbook: Wood as an Engineering Material
https://www.fpl.fs.usda.gov/products/publications/
• The Wood Database – Global reference for wood identification, physical properties, and woodworking characteristics
https://www.wood-database.com/
• Royal Botanic Gardens, Kew – Plants of the World Online – Botanical taxonomy and species distribution database
https://powo.science.kew.org/
• International Union for Conservation of Nature (IUCN Red List) – Global conservation status assessments
https://www.iucnredlist.org/
• Convention on International Trade in Endangered Species (CITES) – International trade regulations for protected plant species
https://cites.org/
Additional forestry publications, academic research papers, and regional timber studies may also be referenced where available.
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Availability & Where to Buy
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