There is a gas station near Mosquito Lake Road. This is the last stop of civilation before reaching entering the logging roads around Racehorse Creek and the fossil fields.
https://github.com/davepinch/pinchy.cc/blob/master/content/topics/places/cities/united-states/washington/whatcom-county/welcome/welcome-washington.md
Welcome, Washington (Wikipedia) Welcome is an unincorporated community in Whatcom County, in the U.S. state of Washington.