We did a trip to Drumheller and back last summer in our S60, 300km round trip and had 50km ideal range left when we got home. Couple trips to Banff and back 265km with 90km ideal range left. A trip to Lake Louise just after xmas, 200km on the way out and arriving with 98km ideal range left. Depending on where you are in the city you should have no issues at all getting to Golden with your 85kWh battery. Of course how heavy your foot is really makes a big difference
Look forward to seeing your metallic blue around on a sunny day, one of the colors I have not yet seen in person