Inspired by the natural beauty of Marin’s shaded hills and coastal waterways, Mill Valley Mix is a hand-selected blend of smooth, multi-colored premium river rock ranging in sizes from approximately 1 to 2 inches. This colorful mix includes tones of mocha brown, slate gray, taupe, plum, sandstone, and pale blue — perfect for bringing warmth and texture to any outdoor landscape in Mill Valley, Novato, Napa, Santa Rosa, and beyond.
 
Each stone is naturally rounded and washed, making this mix ideal for high-visibility design elements in residential and commercial settings alike.
 
Top Uses for Mill Valley Mix in the North Bay:
Decorative rock mulch for garden beds in Petaluma and Vacaville
Border edging around pavers, fences, or patios in San Rafael and Benicia
Water features and fountain basins in Sonoma or Vallejo backyards
Drought-tolerant xeriscapes and modern dry creek beds in Napa and St Helena
Tree wells, accent strips, and container top-dressing in Cotati
 
Size, Packing and Coverage:
1” +/- Mix – Ideal for detail work, edging, small planter beds, and general landscaping.
2” +/- Mix – Perfect for bold decorative features, drainage channels, borders or large area coverage
Packing: 40 lbs. bags only (55 bags/pallet ~ 110 sq ft)
Material Area Coverage Chart:
10 bags ~ 20 sq ft
20 bags ~ 40 sq ft
30 bags ~ 60 sq ft
40 bags ~ 80 sq ft
50 bags  ~ 100 sq ft
Note: coverage varies with install depth
 
Reliable Local Delivery
North Bay Materials delivers loads directly to homes, job sites, and tight-access driveways throughout Marin, Sonoma, Napa, and Solano Counties using small truck.
 
Natural + Low Maintenance
Mill Valley Mix is long-lasting, permeable, and eco-conscious—a beautiful alternative to bark mulch that never decomposes, blows away, or needs refreshing.


Frequently Asked Questions – Mill Valley Mix Pebble
Q: What colors are included in Mill Valley Mix Pebbles? 
A: This mix-pebbles includes natural tones of mocha brown, slate gray, taupe, plum, sandstone, and pale blue. Each stone is hand-selected and washed for consistent quality.

Q: What sizes are available?
A: Mill Valley Mix Pebbles are offered in 1” +/- (ideal for edging, planters, and detail work) and 2” +/- (best for bold borders, drainage, and large landscape areas).

Q: How much area does one 40-lb bag cover?
A: Each 40-lb bag covers about 2-3 sq ft at a 2" depth. A full pallet of 55 bags covers ~100–110 sq ft depending on install depth and layout.

Q: Are Mill Valley Mix Pebbles safe for walkways and patios?
A: Yes but for occasional walkways only, the stones are naturally rounded and safe underfoot, making them suitable for light-use paths, borders, and patios. For heavy-traffic areas, they are better as accents rather than the primary surface.

Q: Do the colors change when the pebbles get wet?
A: Yes. When wet, the mix reveals deeper and more vibrant tones, especially the plum, sandstone, and pale blue shades, enhancing water features and fountain designs.

Q: Where can you deliver Mill Valley Mix Pebbles?
A: We deliver across Marin, Sonoma, Napa, and Solano counties—including Mill Valley, San Rafael, Santa Rosa, Napa, Vallejo, and nearby areas. Small-truck delivery makes it possible to access tight driveways and hillside homes. Note this product may also be shipped to all over California using LTL freight.

Q: How do Mill Valley Mix Pebbles compare to mulch?
A: Unlike bark mulch, pebbles don’t decompose or blow away. They are long-lasting, permeable, and low-maintenance—making them a sustainable alternative for drought-tolerant and modern landscapes.