I have noticed this bottleneck too, and wondered if there might be some way to build a website or app to help facilitate people trading labor, but I have no clue about the feasibility or where to even start. I wear thinking something that enabled people to match skills with needs, to act as a portfolio for samples of their work, to list local endorsements or mutual connections for some level of trust, but that sounds pretty daunting.
Thank you for reminding me about this! I had forgotten about hearing that it was becoming a national park. I spent a lot of time there in the summers as a kid; my dad really liked white-water rafting and took a part-time gig as a guide in the summer to fund his hobby, and my little brother and I spent weekends at the rafting company campground (the Rivermen? is that still operating?) catching salamanders and begging to go out on the next rafting trip.