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.