Lake Henshaw is a big shallow reservoir in the dry hills of north San Diego County, and it appears suddenly on State Route 76, a flat sheet of water in a landscape of golden grass, oak and granite. It was created in the 1920s by damming the San Luis Rey River, and its main job is to store water for the coastal communities far to the west. The level rises and falls with the rain, and in dry years it shrinks to a muddy pool, while after wet winters it spreads wide and blue, with birds gathering along the edge.
The surrounding country is the Warner Valley, a high basin among the mountains, and it has a deeper history than the reservoir suggests. The valley was long home to the Cupeño and Luiseño peoples, who gathered around its hot springs and lived on acorns, game and the plants of the chaparral. Later it became ranchland, and the old stage route from the east to San Diego passed through, a hard road for settlers arriving across the desert. Today cattle still graze on the grass, and the roads are quiet.
For a rider, the view from the road is an invitation to slow down. State Route 76 here is a well-surfaced highway with long curves, gentle gradients and open vistas, and it is a pleasure in the cool of the morning or the warmth of the evening. The mountain of Palomar rises to the west, dark with trees against the pale sky, and the lake in front gives it a mirror. Traffic is moderate, with weekend cyclists and day-trippers, and passing places are frequent. In winter, early morning frost and fog can appear on the low ground, and in summer the heat shimmers over the water.
Birds are the highlight for those who look. Herons, egrets and pelicans use the lake, and in winter ducks and geese arrive in numbers. The wide sky and the open space give a sense of calm, and the sound of the wind in the grass is the main noise.
Services are sparse near the reservoir. Ramona, about twenty-four kilometres to the west, and Julian, a similar distance to the east, are the places to find fuel and food, and a small resort on the lakeshore sometimes has a café, though hours vary. Fill up in a bigger town before you come this way.
Pull off at a safe spot, take off your helmet and listen. The valley is wide and quiet, and for a moment the whole region seems to be holding its breath.