Vieta, Vidzeme
Rising 66.6 meters above the surrounding plain to an absolute elevation of 126.6 meters, Zilaiskalns is the highest hill in northwestern Vidzeme and the centerpiece of a 117.71-hectare nature reserve established in 2004 near Kocēni, Valmiera municipality. Beyond its ecological value, protecting slope and ravine woodlands with oak and ash stands, the hill carries deep cultural significance: it was declared a state-protected archaeological monument in 1998 for its cult site and medieval burial ground, and recognized as a local sacred site in 2006. A 3.5-kilometer circular trail winds around its slopes, drawing both domestic and international visitors.