Game wardens investigated a single snowmobile crash in Bethel this morning, according to a Maine Warden Service press release. Ann Vinton, 47, from South Weymouth, Mass. was operating a rented snowmobile with her nine-year-old son as passenger. Vinton lost control, left the trail, and collided with several small trees. Upon impact, her son received facial lacerations from his helmet visor. The boy was transported to Stephens Memorial Hospital in Norway where he was treated and released. Vinton was riding with her husband and second child; they were on another snowmobile. Game wardens say operator experience was a contributing factor. No charges are expected.  Bethel Fire and Rescue responded to the incident. The boy was brought out of the woods to the ambulance on the BFD’s rescue sled behind the department’s ATV, according to Fire Chief Mike Jodrey. This was the second rescue of someone injured on a rented snowmobile in two weeks, he said. A snowmobiler broke his leg on a trail near the Albany/Greenwood town line in the earlier incident.